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HomeMy WebLinkAbout24-03 Next Electric LLCBID BOND (PENAL SUM FORM) RECEMFID MAY 2 7 2025 D17PT OF PUBI ICI w S Bidder NEXT Electric., LLC UNHKOSH, WISCON,! Surety Everest. Reinsurance Company Name: Name; Address (orincipolplacepf business)* Address (principolplace of business), 280I.S. Moorland: Road P.0, Box 830 New Berlin, Wl 0161 Liberty Corner, NJ 07938 Owner City of Oshkosh Bid, Name- Project (name and location): Address (principal place of business): ConV6ct No'. 24-03 Wastewater Tmtrnent Plant Tertiary. Treatment 216 Church Avenue Oshkosh, Wl 54903' Oshkosh, Wl Bid Due Date: 4019)09" 5/27/25 Bond Penal Sum: FIve,P0(cbnQ5%,):of Amount 131d Date& Bond: May 6, 2025 Surety and .Bidder, intendingto be I oily bound subject to the, terms set forth I , . e n this BK&Bpnd, do each cause this Bid Bondito be duly executed by an authorized officer, agent, or re, preseritat., Ive I Bidder NEXT Electric, LLC Surety Pverest Reinsurance Cgr0pa , ny arm 14lame of II! (full for e: of Surety) S ature atuee) jktoeh Powe, pfAitomey), Name: Name. Stephanie Gunderson (Printed or typed) (Printed or typed) Title: Title' Attorney -in -Fact Attest: Attest: (VOnature) (Signature) Name: Q�At Names S. Nicole Evans (Ptl6tedortypgo!) (PrInted'ortyped) Title; keC,-A aa-(AkrkN(z Title.; Witness: I , Notes:, 1) lVJ`t,e- Addresses are to be - used forgiving any required notice, f.) Provide execution by any additional parties, such as jaint'venturers, ifflecessary, EJCDC* C-430,. Bid Bond (Penal Sum Form). Copyright'D 2018 Nat . tonal Society of,Professional Engineers, American, Councillof Engineering companies,. and American Society of Civil Engineers, All rights reserved. RA un 1. Bidder and Surety, jointly and severally, bind themselves, their heirs, executors, administrators, successors, and assigns to pay to Owner upon default of Bidder the penal sum set forth on the face of this Bond. Payment of the penal sum Is the extent of Bidder's and Surety's liability. Recovery of such penal sum under the terms of this Bond will be Owner's sole and exclusive remedy upon default of Bidder. 2. Default of Bidder occurs upon the failure of Bidder to deliver within the time required by the Bidding Documents (or any extension thereof agreed to in writing by Owner) the executed Agreement required by the Bidding Documents and any performance and payment bonds required by the Bidding Documents. 3. This obligation will be null and void If: 3.1. Owner accepts Bidder's Bid and Bidder delivers within the time required by the Bidding Documents (or any extension thereof agreed to in writing by Owner) the executed Agreement required by the Bidding Documents and any performance and payment bonds required by the Bidding Documents, or 3.2. All Bids are rejected by Owner, or 3.3. Owner fails to issue a Notice of Award to Bidder within the time specified in the Bidding Documents (or any extension thereof agreed to in writing by Bidder and, If applicable, consented to by Surety when required by Paragraph 5 hereof). 4. Payment under this Bond will be due and payable upon default of Bidder and within 30 calendar days after receipt by Bidder and Surety of written notice of default from Owner, which notice will be given with reasonable promptness, identifying this Bond and the Project and including a statement of the amount due. S. Surety waives notice of any and all defenses based on or arising out of any time extension to Issue Notice of Award agreed to in writing by Owner and Bidder, provided that the total time for Issuing Notice of Award Including extensions does not in the aggregate exceed 120 days from the Bid due date without Surety's written consent. 6. No suit or action will be commenced under this Bond prior to 30 calendar days after the notice of default required in Paragraph 4 above Is received by Bidder and Surety, and in no case later than one year after the Bid due date. 7. Any suit or action under this Bond will be commenced only in a court of competent jurisdiction located In the state In which the Project is located. 8. Notices required hereunder must be in writing and sent to Bidder and Surety at their respective addresses shown on the face of this Bond. Such notices may be sent by personal delivery, commercial courier, or by United States Postal Service registered or certified mail, return receipt requested, postage pre -paid, and will be deemed to be effective upon receipt by the party concerned. 9. Surety shall cause to be attached to this Bond a current and effective Power of Attorney evidencing the authority of the officer, agent, or representative who executed this Bond on behalf of Surety to execute, seal, and deliver such Bond and bind the Surety thereby. 10. This Bond Is Intended to conform to all applicable statutory requirements. Any applicable requirement of any applicable statute that has been omitted from this Bond will be deemed to be included herein as if set forth at length. If any provision of this Bond conflicts with any applicable statute, then the provision of said statute governs and the remainder of this Bond that is not in conflict therewith continues In full force and effect. 11. The term "Bid" as used herein includes a Bid, offer, or proposal as applicable. EJCDC• C•430, old Bond (Penal Sum Form). Copyright° 2018 National Society of professional Engineers, American Council of Engineering Companies, and American Society of Civil Engineers. All rights reserved. kieverest- POWER OF ATTORNEY' EVEREST REINSURANCE COMPANY KNOW ALL PERSONS BY THESE PRESENTS: That Everest Reinsurance Company; a corporation of the State of Deiaware.('Company") having its principal office located at 100 Everest Way" Warren, New Jersey, 07656,.do hereby nominate, constitute, and 'appoint: S. Nicole Evans, Stephanie Gunderson, Diana Cervantes, Carlos A. Albelo Its the and (awful Attorney(s)-h-tact to make, execute, attest; seal and deliver for and on Its; behalf, as surety, and'as Its act and deed, where required, any and all bonds and undertakings In the nature thereof,. for the penal sum of no one of which Is in any event to exceed UNLIMITED, reserving for Itself the full power of substitution and revocation. Such bonds and undertakings,;when duly executed by the aforesaid Attomay(s)-in-factshail be binding upon the Company as fully and to the same.extent as IF such bonds: and undertakings were signed by the President and Secretary of the Company and sealed with its corporate seal. This Powerof Attorney Is granted and Is signed by facsimile under and by the, authority of the following Resolutionsadopted by the Board of .Directors of Company ('Board*) on April 21, 2016: RESOLVED, that the President, any Executive Vlca President; and any Senior Vice President are hereby appointed by the Board as authodzed to make, execute, seat and deliver,for and on behalf of the Company, any and all bonds, undertakings, contraots orobiigadons In surety or co+surety with other§ and that the $ewetary brany Assistant Secretary pf the Company be and that each of !barn hereby is authorized to attest to the execution of any such bonds; undertakings, contracts or obligations in surety or co -surety and attach thereto the. corporate seat of the Company: RESOLVED, FURTHER, that the President any Executive Vice President, and any Senior Vice. President are hereby authorized to execute powers of attorney qualifying: the attorneynamed "ln:the given power of>aftomey'to execute, on behalf of the Company, bonds and undertakings in surety or co -surety with others) and that the Secretary or any Assistant Secrataryof the Company be, and that each of them is hereby authorized to attest the eirecutlon of any such power of attorney, and to attach thereto the corporate seal of the Company." RESOLVED, FURTHER, that the signature of such otfrcers named to the preceding resolutlons and the 'corporate seat of the Company may affixed to such powers of attorney or to any certifloate relating thereto byiacslmile, and any such power of attorney or certt(lcate bearing such fees/mile. signatures or facsimile seal shaft be thereaRer valid and binding upon the Company with respect do any bond, undertaking, contractor obligation in surety or co -surety with others to which it Is attached. IN WITNESS WHEREOF, Everest Reinsurance Company_ has caused their corporate seals to be affixed hereto, and thesepresents.to be signed by their duly authorized"officers this IS1h day of.February 2023, Everest Reinsurance Company` By: Anthony Romano, Seo-, SSee'nfor Vice President on'ihis.l5r^ day of February 2023, before. me personally came Anthony Romano, known to me, who, being duly swom, did execute the above Instrument; that he known the seal of said Company; thatthe seal affixed to the aforesaid Instrument Is such corporate seal and was affixed thereto; and that he executed said instrument by like order. LINDA ROBINS Notary Public. slate of Now York 1� , No 011106239736 7, QualHted In Queens county el--' a Term Expire: April 2$, 2027 Linda Robins, Notary Public I, Nicole Chase; Assistant Secretary of Everest Reinsurance Company do hereby certify that I have compared the foregoing copy of the Power ofAttorney and of 1davit,,and the copy of.the Section of the bylaws and resolutions of said Corporation as set fortln said Power of Attorney, with the ORIGINALS ON FILE IN THE HOME OFFICE OF SAID Cof2PORATiON, and that the same are correct transcripts thereof, and of the whole of the said originals, and that the said Power of Attorney has not been revoked and Is now in full force and effect, " IN,W1 fNESS WHEREOF, I have hereunto set my hand and affixed the seal of said Company, this 0% day of. , l 2025.. . SEAI:F e► ° ? isy! By; Nicole Chase, Assistant Secretary ES 00 0104 16 5&C: Current manufacturing estimate: 1OO-11Oweeks ARO,includes: ° 9 - 11 weeks for creation of approval drawings ARO ° J weeks allocated for customer review/approval of drawings Vontron: 28-30 weeks 0 4 weeks drawings Eaton/Cooper Transformer alternate (BABA COMPLWJNT\: 114weeks tomanufacture 5 weeks drawings MENEM DFTTVprUBLIC WORKS Ems-• w J ♦Q o V/ r a °' O CL a w J Q ca U) U) LO M m 0 a d N w v o Q n U) = H d w c`a z a o N aU) LL z } O MCD W z =Wo o O 00— P C� uu ce M 0 O 00Zti aN. LL = J tJ.l Z I-- 00 W Z Z a w p c = J 0 Z c�ot�H O O N O Z Ue N Z Q a LL LL M= ca u7 V G - W L o ° ai � � a� M p d W ° o = a �m� In LALi/. W r O [AO Jet? LL o oo U. L _ - --IL (0 W L N Y N N LL_ J cn � -C oN Ja O a a ca a o= a m W W 0LL 2:,o;, O � U F" U dCD •N Q) = Z co c: M M 0 M •-0+ v v RI tC d �° hi L t= O = N N c.' ° 5 �a�i 'aoi IL cn o > > cn C ' ° _ LL m H w Y U) J Q o Cl) O a� IL O a a cn w J Q Cl) CV m C� O N W� d. tll O a H U) d Q N a (� Z Z u. 0 S 0 F- JCo J cn O M � O Z Q p r Z O CO fO 00 O 0 wu6M V p0n O �jti J O _ U. OV Z 0Qa i r U J 0 O J �vFw- CD Z O (0 O 0 z c� N Z Q Q w CL U. cn o Ji — i O V 'r Z - -> LL o •• V • c w w15 W O M_ v aai -0 t' W = ca O U- °° A/ W IL LL V w o �LL c CD.: °' - � co i - M O Y N Cl)N N� J Q O r- N ai Y L .�C O N � v n. •� 0 O ti m 0 0 M ui O p V W + 06 O > W C)U °' Ucn L: C O J OLO iv a� toO Z m ci .c G. d d - < 0w w y_ tl C Q1 1 d � 0 ni � ' C. to > > to i? in2 S&C CUSTOM METAL -ENCLOSED SWITCHGEAR INDOOR AND OUTDOOR DISTRIBUTION (4.16 KV THROUGH 34.5 KV) Switchgear is crucial to maximizing your reliability and minimizing expenses. However, metal -clad and pre-engineered metal -enclosed switchgear options increase the risks of downtime and waste your money. Introduction S&C's Custom Metal -Enclosed Switchgear is a highly customizable, durable, and low -maintenance choice for your commercial and industrial facilities. Incorporating interrupter switches and power fuses in rugged monocoque enclosures, the gear permits you to tailor reliable, economical, medium -voltage switching and protection packages totally matched to your power distribution system requirements. Contents Introduction 1 Enclosure —Construction and Finish 3 Components 8 �Accessories 12 Design Flexibility 14 Available in ratings through 290 MVA at 4.16 kV, 960 MVA at 13.8 W,1080 MVA at 25 kV, and 1000 MVA at 34.5 kV, the custom switchgear is especially suited for those applications having unique requirements beyond the scope of typical pre-engineered metal -enclosed switchgear. For example, custom switchgear is often used when complex automatic source -transfer schemes are necessary, such as those involving three or more incoming power sources and using multiple split -bus sections or ring -bus arrangements. Custom switchgear is also appropriate where special installation requirements must be satisfied, which is often necessary for transformer primary unit substations, and those applications requiring special-purpose components, which include grounding switches, control power transformers, extensive metering panels, capacitors for power - factor correction, etc. Unusual combinations of components, such as hot -sequence metering, S&C CUSTOM METAL -ENCLOSED SWITCHGEAR or particular floor -space restrictions that require unusual switchgear layouts—"U shaped" configurations for example —are also applications for which S&C Custom Switchgear is ideally suited. For your medium -voltage systems through 34.5 kV, S&C Custom Metal -Enclosed Switchgear uses highly engineered, thoroughly tested, and field -proven switching, protection, control, and insulation components. These components are effectively integrated into an S&C enclosure of unmatched security, versatility, and durability. With S&C Metal -Enclosed Switchgear, you are assured the components and enclosure selected to match your specific requirements are all built to exacting standards of quality by a single manufacturer. As a result, you receive an exceptional comprehensively engineered switching and protection package that ensures the unparalleled level of reliability you should demand for your power distribution system. This superior performance is complemented by UL® and CSA listings of all S&C Metal -Enclosed Switchgear rated 4.16 kV and 13.8 kV with 600-ampere or 1200-ampere main bus, even including Category A enclosures when needed. S&C Custom Metal -Enclosed Switchgear is available with all types of S&C Power Fuses, including S&C SM-20, SM-40, SM-4Z, SM-5S, SM-SSS, and Fault Fiter® Electronic Power Fuses, which provide ratings through 720E amperes continuous. This broad choice of fuses provides a wide variety of ampere ratings and time -current characteristics to give you the utmost flexibility in meeting your protection and coordination needs. For all three-phase switching duties, S&C Custom Switchgear offers a choice of field -proven, three - pole group -operated switches—Mini-Rupter® Switches and Alduti-Rupter® Switches. These switches cover the range of full -load switching through 1200 amperes with no external arc or flame and offer duty -cycle fault -closing ratings matched to the ratings of the entire switchgear lineup. S&C CUSTOM METAL -ENCLOSED SWITCHGEAR S&C Switch Operators provide power operation of these switches for automated switching applications The switches with switch operators can be used for remote supervisory control or, in combination with S&C automatic control equipment, to implement power distribution systems featuring: • Automatic source transfer using S&C Micro -AT® Source -Transfer Controls • Source -side and load -side open -phase detection using S&C Open -Phase Detectors • Protection from single phasing using S&C Over - current Relays. S&C switches, switch operators, and source -transfer controls can also be incorporated into custom switchgear for implementing special sophisticated automatic switching schemes, such as fault -clearing on resistance -grounded systems, load shedding, and high-speed source transfer for use in combination with Uninterrupted Power Supply (UPS) systems. The combination of interrupter switches for switching and fuses for protection eliminates the need for expensive circuit -breaker gear (metal - clad switchgear), particularly on cable distribution systems where the rare and permanent nature of the faults makes the Automatic Reclosing feature of circuit -breakers an unnecessary extravagance. The interrupter switches never need adjusting, setting, or dielectric testing. Only an occasional inspection and exercising is required. The maintenance -proof fuses, unlike relays, never need setting or testing. With metal -enclosed switchgear, there are no batteries requiring special facilities and monitoring. The simplicity of metal - enclosed switchgear, its exceptional dependability, its low first cost, and its minimal maintenance cost make it the best choice,for your system. S&C has developed an inventory of engineering concepts and techniques compiled during more than 50 years of metal -enclosed switchgear design and manufacture. Sophisticated CAD/CAM computer systems further enhance efficiency and accuracy in the drawing preparation process and in the manufacturing process. All custom switchgear uses proven components and construction techniques. Manufacturing is done in ultramodern facilities, including automated production methods using computer numerically controlled machine tools, many equipped with direct numerical control capabilities, as well as robotic welding systems, laser cutting centers, and electronically controlled finishing systems. This sophisticated equipment produces accurately fabricated and finished components and matching assemblies of a classic quality not achievable with simple manual punching, forming, and welding equipment. The resultant switchgear is uniquely professional in every aspect. It meets your mechanical, electrical, and finish specifications while providing the ultimate in operating simplicity, flexibility, durability, and reliability. S&C Custom Metal -Enclosed Switchgear can solve your power distribution problems, and it is especially valuable for those applications requiring special components and features not available in modular switchgear. The combinations of system circuitry and switchgear configurations you can use to achieve the desired level of economy, functionality, and power availability in medium -voltage switching and protection are virtually limitless. To see how in -plant power distribution systems can be implemented using custom metal -enclosed switchgear, refer to S&C Information Bulletin 620-55. For assistance in selecting S&C Custom Metal - Enclosed Switchgear matched to your specific needs, contact your nearest S&C Sales Office. Enclosure —Construction and Finish Rely on S&C Custom Metal - Enclosed Switchgear to thwart the environment and the curious. Metal -enclosed switchgear is often located in outdoor areas and is thereby exposed to all environmental conditions and to vandals. To keep out windblown rain, sleet, and snow and the unauthorized, S&C Custom Metal -Enclosed Switchgear for outdoor applications features a unique system of gasketing, sealing, and forming techniques to close off all openings, ensuring the interior remains dry and free of contaminants and eliminating points of entry. 3 S&C CUSTOM METAL -ENCLOSED SWITCHGEAR All enclosures feature comprehensive access controls and security measures to guard against unauthorized entry. And, when specified, S&C Metal -Enclosed Switchgear provides the industry's highest standard of security for this class of equipment: Category A enclosures. Compliance with the Category A security requirements of ANSI/IEEE C37.20.3 was verified by conformance testing in accordance with ANSI C37.57 during UL certification of 4.16 kV and 13.8 kV switchgear. Many of the extraordinary sealing techniques and tamper -resistant features used to isolate the internal components from the environment and the curious are illustrated on pages 5, 6, and 7. Guarding against corrosion is S&C's Ultradur® II Outdoor Finish, an unparalleled finishing system proven to provide lasting protection for outdoor gear. It's a high-performance comprehensive finishing system. First, all steel surfaces are meticulously cleaned, phosphatized, and sealed in a fully automated multistage pretreatment process to improve the finish -to -metal bond and to resist rust. Next, a cohesive, impenetrable, baked on, epoxy powder initial coating, the keystone for the exceptional durability of S&C's Ultradur II Outdoor Finish, is applied, followed by a superior high solids acrylic topcoat that ensures lasting protection against deterioration of the finish by ultraviolet radiation. Then, an electronically monitored and controlled final bake produces the tough, beautiful finish, a dense, hard shield that's almost ceramic in appearance and performance. All hardware is protected against corrosion, too because it's galvanized, zinc -nickel plated, stainless, or of nonferrous materials. To demonstrate the superiority of the Ultradur II Outdoor Finish over conventional finishes, it has been comprehensively tested using a battery of industry -recognized ASTM tests designed to evaluate the capabilities of protective coatings. All test results obtained for S&C's Ultradur II Outdoor Finish meet or exceed the requirements of applicable industry standards, including ANSI C57.12.28, as shown by the following highlights of test methods used and results obtained: Salt -spray testing. The exceptional corrosion resistance of the Ultradur II Outdoor Finish is demonstrated by its ability to withstand at least 4000 hours of exposure to ASTM salt -spray testing while limiting underfilm propagation of corrosion to less than 1/32-inch (0.8 mm) from the scribe, and loss of adhesion from bare metal to less than 1/8-inch (3 mm) from the scribe. Humidity testing. Confirming the outstanding finish -to -metal bond and resistance to moisture penetration achieved with the Ultradur II Outdoor Finish is its ability to withstand at least 1000 hours of exposure to ASTM testing with no blistering. Ultraviolet accelerated weathering testing. The Ultradur II Outdoor Finish's superior resistance to weathering is corroborated by its ability to withstand at least 500 hours of exposure to ASTM weathering testing with no chalking and with less than 15% reduction in gloss. Adhesion testing. Verification of the Ultradur II Outdoor Finish's remarkable resistance to scratching and chipping is demonstrated by its ability to withstand ASTM crosshatch adhesion testing with absolutely no loss of paint and by its ability to withstand ASTM impact testing using a 160-inch-pound impact by a pointed weight with no chipping or cracking. Scab corrosion testing. The Ultradur II Outdoor Finish's corrosion resistance in severe environments such as coastal areas is validated in ASTM testing that shows its ability to limit corrosion creepback to less than 1/6-inch (1.6 mm) from the scribe without blistering or loss of adhesion after 35 cycles of exposure to various corrosive conditions. Oil resistance. The Ultradur II Outdoor Finish exhibits excellent resistance to insulating oil (S&C Metal -Enclosed Switchgear uses in -air insulation but oil may spill from some other equipment). Immersion in mineral oil for 72 hours produces no changes, such as color shift, blisters, loss of hardness, or streaking. Abrasion resistance. The Ultradur II Outdoor Finish's superlative resistance to wear (such as would be encountered during transit, handling, and installation) is demonstrated by its ability to be subjected to Taber Abraser testing for at least 3,000 cycles without wearing through to the substrate. 4 S&C CUSTOM METAL -ENCLOSED SWITCHGEAR As proven by the ability to withstand this severe battery of tests and achieve results far surpassing industry standards, S&C has an outstanding finishing system for outdoor metal -enclosed gear. The Ultradur II Outdoor Finish resists deterioration to provide unequaled protection from the elements, which is a key factor in assuring enclosure integrity for enhanced security. Channel gasketing at interbay bus openings provides added protection against water entry Gasket seals at the top and side edges of adjoining bays keep water from entering between bays FIGURE 2. Outdoor S&C Custom Metal -Enclosed Switchgear has enclosures with the environmental checks to ensure service continuity in all atmospheric and weathering conditions. Some of the features that thwart the environment are described above; features providing structural Integrity and access control are described on pages 6 and 7. 5 S&C CUSTOM METAL -ENCLOSED SWITCHGEAR Closed -cell gasketing weather -seals the Whatever your system, you'll have roof in place greater service continuity and Molded continuous gasket seals handle and window openings, protects sheared edges ® Insulating "no -drip" compound on the inner underside of the roof checks condensation, and resilient compression gasket around door openings keeps water out ® Durably resilient compression gasket around door openings keeps water out ® Rainproof vent construction keeps water out but lets air circulate as an aid to moisture control. Baffles and screens inside the enclosures cover all vents and discourage wire -poking by the curious Space heaters (not visible) maintain air circulation inside the enclosure; they keep the air moving and help keep the interior dry ® S&C's exceptional Ultradur II Outdoor Finish protects the steel with: a. A multistage pretreatment process of high-pressure spray cleaning, rinsing, phosphatizing, and sealing b. A durable, baked on, epoxy powder initial finish coat c. For outdoor switchgear, a tough, stable high solids acrylic topcoat ® Gasket covers with sealants at window edges guard against water entry to electronic controls and switch operators operating flexibility by ensuring your switchgear has all these features. S&C Custom Metal -Enclosed Switchgear features monocoque construction. Each bay is fabricated from 11-gauge steel sheet and is a freestanding unit with an integral steel -channel base around the four sides. The accurately formed, matching enclosures ensure perfect alignment in multibay assemblies. Because of the cellular design, there are always double walls between the adjoining bays. There are no externally bolted -on side sheets, rear sheets, or roofs to attract a vandal to S&C outdoor gear. Even future bus extensions are secured internally. By design, the gear discourages the inquisitive. To guard against poking and prying, corners of doors and door openings are welded, latching mechanisms use a cam action to pull doors tightly closed, and handles are flush -mounted. Enclosures specified with Category A construction include additional features, such as window covers,, handle covers, and the S&C \Penta-Latch® Mechanism, to provide the industry's highest standard of security for this class of equipment. Enclosures are designed for complete front accessibility, except where unusual combinations of components require an extra -deep bay, so S&C gear may be placed back-to-back or against a wall. It fits in a minimum of floor space. And because it's unquestionably rugged yet light by comparison to circuit -breaker gear, only a level floor or pad is required for installation, never a foundation or support channels. It can be installed anywhere, even on balconies or outdoors on rooftops. 6 S&C CUSTOM METAL -ENCLOSED SWITCHGEAR FIGURE 3. Highlighted above are the many features of S&C Custom Metal -Enclosed Switchgear, including those that provide structural integrity, resistance to the environment, and access control necessary to assure enclosure security. Testing by UL of 4.16-kV and 13.6-kV switchgear has confirmed conformance with ANSI standards on enclosure security, including the requirements for Category A enclosures when specified. And this is all in addition to the environmental checks described on pages 4 and 5. QWide bulkhead -type doors provide for easy a Nameplate provides ratings of the access to all bays. switchgear assembly. 13 Deep 90-degree flanges on the extra- © 11-gauge steel is used for roof, side, and rear rugged doors ensure rigidity and discourage sheets, front, and door. tampering. Sheared edges are folded back toward the inside of the door to limit ® Full side sheets for each bay result in exposure, helping prevent corrosion. double -wall construction between bays. ® Exterior signage alerts to hazards. S&C CUSTOM METAL -ENCLOSED SWITCHGEAR © Three concealed, high -strength latches seal the doors shut. ® Wide -view windows that are both impact - and mar -resistant facilitate checking of switch positions, blown fuse indicators, and status of controls without opening the doors. ® Padlockable window covers are included on Category A enclosures. ® Full-length doors have three concealed, extra -heavy-duty hinges with stainless steel pins that won't corrode so the doors pivot with ease. Protective screen doors bolt closed and serve as a second barrier guarding against inadvertent entry to bays containing medium -voltage components. Interior hazard -alerting signs are unmistakably bold and clear. ® Integral steel base around all four sides of each bay keeps enclosure rigidly positioned and helps block interbay openings at bottom of bay. ® Storage racks keep replacement fuse components in a convenient location. There's an exceptional amount of room for pulling cable and making terminations. Padlockable handles on doors and covers shield the padlock shackle and thwart tampering by vandals. Enclosures specified with Category A construction use S&C's Penta-Latch Mechanism, providing coordinated latching and padlocking on door handles. Storage racks keep replacement fuse components in a convenient location. Key interlocks and padlocks help control access to medium -voltage compartments. Self -latching door holders securely hold the doors open against accidental or windblown closing, and they unlatch with a touch of the toe for closing. ® Low -voltage wiring is in grounded cable trays isolated from medium voltage. Components S&C Custom Metal -Enclosed Switchgear offers an extensive selection of standard S&C components, allowing you to tailor a switchgear package to your switching and protection needs. S&C Interrupter Switches are completely factory adjusted and perform the full spectrum of live switching duties, including duty -cycle fault -closing matched to the rating of the switchgear. Cypoxy' Insulators that use S&C's cycloaliphatic epoxy resin system insulate all live parts from ground. Cypoxy Insulators are nontracking, self - scouring, and nonweathering, and they have extremely generous leakage distances. S&C medium -voltage power fuses (Type SM Power Fuses and Fault Fiter® Electronic Power Fuses) provide full -fault -spectrum protection. Fuses rated through 720E amp are available. Aluminum bus connections are wire -brushed and coated with an oxide -inhibiting compound, and then bolted to a uniform torque of 50 ft.-lbs. with two spring -steel washers per bolt to maintain optimum contact pressure. Nonremovable front -operated switch operating handles for manually operated switches are readily accessible for immediate use, and they are padlockable whether switch is open or closed. Handle covers are also available. Switch operators provide power operation; models are available with high-speed stored -energy switching and with convenient decoupling to permit exercising plus full checkout of automatic control schemes. Continuous ground bus in multibay lineups has a short-circuit rating equal to that of the integrated assembly. Grounding provisions matched to the short-circuit rating of the gear are conveniently located "up front" on the ground bus and lower terminal of each fuse mounting, switch, or bus -tap section for easy access and installation of grounding clamps. S&C CUSTOM METAL -ENCLOSED SWITCHGEAR FIGURE 4. Illustrated above is a typical lineup of custom switchgear featuring many of the available standard components. A variety of S&C switch, fuse, and electronic components are highlighted. Hinged protective covers for low -voltage components are permanently attached to gear to avoid becoming contaminated, damaged, or lost. Access to controls is achieved without exposure to medium voltage. Internal covers (not visible) inside bays isolate low - voltage components from medium voltage. S&C Voltage Sensors for sensing loss of voltage in source -transfer and open -phase detection schemes. S&C Interrupter Switches are completely factory adjusted and perform the full spectrum of live switching duties, including duty -cycle fault -closing matched to the rating of the switchgear. 13 Cypoxy' Insulators that use S&C's cycloaliphatic epoxy resin system insulates all live parts from ground. Cypoxy Insulators are nontracking, self -scouring, and nonweathering, and they have extremely generous leakage distances. ® S&C medium -voltage power fuses (Type SM Power Fuses and Fault Fiter® Electronic Power Fuses) provide full -fault -spectrum protection. Fuses rated through 720E amp are available. Aluminum bus connections are wire - brushed and coated with an oxide -inhibiting compound, and then bolted to a uniform torque of 50 ft.-lbs. with two spring -steel washers per bolt to maintain optimum contact pressure. 9 S&C CUSTOM METAL -ENCLOSED SWITCHGEAR ® Nonremovable front -operated switch Hinged protective covers for low - operating handles for manually operated voltage components are permanently switches are readily accessible for attached to gear to avoid becoming immediate use, and they are padlockable contaminated, damaged, or lost. Access to whether switch is open or closed. Handle controls is achieved without exposure to covers are also available. medium voltage. ® Switch operators provide power operation; models are available with high-speed stored -energy switching and with convenient decoupling to permit exercising plus full checkout of automatic control schemes. ® Continuous ground bus in multibay lineups has a short-circuit rating equal to that of the integrated assembly. Grounding provisions matched to the short- circuit rating of the gear are conveniently located "up front" on the ground bus and lower terminal of each fuse mounting, switch, or bus -tap section for easy access and installation of grounding clamps. ® Internal covers (not visible) inside bays isolate low -voltage components from medium voltage. © S&C Voltage Sensors for sensing grounded systems in source -transfer and open -phase detection schemes. Automatic controls, including Micro -AT® Source -Transfer Controls, ZSD Overcurrent Relays, and SPD Open -Phase Detectors, in grounded metal -enclosed low - voltage compartments isolated from medium voltage. ® Ground cable connectors (not visible) at each end of lineup permit connecting ground bus to station ground. 10 S&C CUSTOM METAL -ENCLOSED SWITCHGEAR S&C switches, fuses, switch operators, and electronic controls are exhaustively tested and field -proven to ensure the utmost in reliability for your switching and protection systems. S&C Interrupter Switches handle all live -switching duties and feature duty -cycle fault -closing ratings, a requisite for automatic control schemes. Mini-Rupter Switch (pictured), rated to 600 amperes continuous and interrupting. Alduti-Rupter Switches, rated to 1200 amperes continuous and interrupting, are also available. SM Power Fuses are offered in a wide variety of ampere ratings and time - current characteristics, permitting close fusing ratios for optimal coordination and maximum protection. Their time -current characteristics are precise and permanently accurate. Type SM-40 Power Fuse (pictured), 400 amperes max continuous. Other Type SM Power Fuses are available in rating from 200 through 720 amperes max and continuous. S&C Electronic Relays applied on individual load feeders protect three- phase loads from single - phasing resulting from blown fuses and other Open Phase conditions. S&C Type MS Switch Operators (pictured) provide automatic Trip Open operation and a choice of manual or automatic Trip Closed operation. These operators are specially designed for high- speed operation of Mini-Rupter Switches —circuit interruption in 4 cycles, automatic transfer as fast as 10 cycles. AS-30 Switch Operators are also available for Alduti-Rupter Switches. Fault Fiter Electronic Power Fuses, with their exceptional TCC I versatility and higher continuous current ratings, provide features and performance previously unavailable in any other protective device. Fault Fiter fuses have ratings of 600 amps max continuous with an interrupting rating of 61,000 amps RMS Asymmetrical. Micro -AT Source -Transfer Controls combine standardized designs, including a wide choice of options, with solid-state reliability and the power and versatility of microprocessor electronics. They're the complete control package for most automatic transfer needs. Custom controls are available to meet special automation requirements. FIGURE 5. A sampling of S&C components available In S&C Custom Metal -Enclosed Switchgear. For additional information on S&C components, consult the nearest S&C Sales Office. 11 S&C CUSTOM METAL -ENCLOSED SWITCHGEAR Accessories Custom accessories are engineered by S&C's experienced team of specialists to meet your specific application parameters. Feeder -protection relays with time and instantaneous overcurrent provide ground - fault sensing for resistance -limited ground - fault switching. OHinged panel permits complete access to relays, which are isolated from medium voltage. FIGURE 7. A custom, power -operated, outdoor feeder bay with an interrupter switch and power fuses features a slide -in barrier and metering transformers in a 90-inch (229-cm) high enclosure. Slide -in barrier prevents inadvertent access to the energized bus while accessing cables (protective screen open for clarity), terminations (not shown), current transformers, voltage transformers, and fuses when lower terminal of fuses are de - energized and grounded. GCurrent transformers (wound type) for revenue metering are mounted behind fuse terminals. ® Fused voltage transformers are used in 21h-element metering scheme. 12 S&C CUSTOM METAL -ENCLOSED SWITCHGEAR a1200-ampere grounding switch aMechanical cam interlock ensures the entrance interrupter switch in the left-hand bay or grounding switch in the center bay is always closed. Circuit is always grounded when entrance interrupter switch is open. © Low -voltage controls provide automatic transfer between external preferred and alternate control -power sources. Isolating switches are interlocked to de -energize low -voltage circuits before accessing compartment, and a sequential switching circuit provides electrical nonparalleling of the interrupter switch and grounding switch. Switch operators provide power operation for remote supervisory control of interrupter switches. 13 S&C CUSTOM METAL -ENCLOSED SWITCHGEAR Design Flexibility With S&C Custom Metal -Enclosed Switchgear, you can develop a virtually unlimited array of configurations specially tailored to the application. Fifteen bays of S&C Custom Metal -Enclosed Switchgear (see Figure 9) are arranged in an "L" configuration and serve as a power -operated split -bus primary -selective service -entrance switching center. Automatic switching of the two source switches and the bus -tie switch by means of S&C Switch Operators and an S&C Source - Transfer Control ensures service continuity for the feeder circuits. Normally, the bus -tie switch is open and the bus sections receive power from independent sources. Should one source circuit fail, the associated switch is automatically opened and the bus -tie switch is automatically closed, with the remaining source then serving all loads. Current sensors and voltage transformers provide sensing and control power for source -transfer control and switch operators. The switchgear assembly also includes S&C Fault Fiter Electronic Power Fuses and other features providing enhanced flexibility and operating convenience. 14 S&C CUSTOM METAL -ENCLOSED SWITCHGEAR The manual, primary -selective, eight -bay lineup of S&C Custom Metal -Enclosed Switchgear (see Figure 10) is configured in a split -bus arrangement. Each bus section is supplied power through a normally closed incoming switch, with the bus -tie switch normally open between bus sections. Three- phase load circuits are switched and protected by power -operated S&C Interrupter Switches with Power Fuses. Automatic Trip Open operation of these switches is initiated by S&C Open -Phase Detectors on single -phasing resulting from blown feeder fuses or from source -side open -phase conditions at the same system voltage as the metal - enclosed switchgear. Three-phase voltage sensing for each power -operated switch is provided by S&C Voltage Sensors. Manually operated S&C Interrupter Switches with Power Fuses switch and protect single-phase load circuits. Provisions for future bus extensions are included. 110 I 1 8 i9 B r IN J' v. LEARN MORE AT 0 OO' ®X 0 sandc.com 071524 62130 0 S&C Electric Company 1967-2024, all rights reserved Metal -Enclosed Switchgear Indoor and Outdoor Distribution (4.16 kV through 46 kV) Application Guide January 20, 2020 Information Bulletin 620-55 © S&C Electric Company 1986-2020, all rights reserved General Metal -enclosed switchgear brings simplicity, reliability, flexibility, and economy to circuit switching and fault -protection functions on medium -voltage power circuits. Metal -enclosed switchgear, consisting of interrupter switches and power fuses, control and sensing devices, instrumentation and metering devices— all housed within rugged integral enclosures —permits tailoring of reliable, economical switching and protection packages matched to virtually any in -plant power distribution system need. Interrupter switches are specially designed to handle all load -switching duties, including full -load, transformer - magnetizing, and cable -charging currents, plus fault - closing duties. And, interrupter switches can be furnished for manual, automatic, or remote operation, extending their use over the full range of operating modes. Power fuses provide precisely coordinated protection over the full spectrum of fault currents. A broad range of power fuses is available, permitting close fusing to achieve maximum protection and optimum coordination. The combination of interrupter switches for switching and power fuses for protection -eliminates the need for expensive circuit -breaker switchgear (metal -clad switch - gear), particularly on cable -distribution systems where the rare and permanent nature of the faults makes the Automatic Reclosing feature of circuit breakers an unnec- essary extravagance. Unlike circuit -breaker switchgear, metal -enclosed switchgear requires minimal maintenance. The interrupter switches never need adjusting, setting, or dielectric testing. Only an occasional inspection, exercis- ing and lubrication is required. And power fuses, unlike relays, never need setting, testing, or maintenance. In addition, metal -enclosed switchgear can be equipped to selectively protect both single-phase and three-phase loads, as opposed to circuit -breaker switchgear, which operates only on a three-phase basis. Also, in comparison to circuit -breaker switchgear, metal -enclosed switchgear is more economical, permitting protection for each load transformer, increased load segmentation to limit the extent of any power -service outage instead of protecting multiple transformers with one circuit breaker. Metal -enclosed switchgear requires no foundation or support channels for installation; only a level pad is required. Light by comparison to circuit -breaker switch - gear, metal -enclosed switchgear installs anywhere, even on balconies and rooftops. And, in outdoor installations, there is no need for additional housing or a walk-in shelter typi- cally required with metal -clad switchgear. Metal -enclosed switchgear can be placed against a wall or back-to-back to minimize floor -space requirements. Avariety of power distribution systems are in use today, ranging from the simplest to the most complex. In design- ing these systems, planners generally use the four basic circuit arrangements described in this publication. Each circuit arrangement offers a level of service continuity, so the system can be matched to the criticality of the load served. In fact, the four fundamental circuit arrangements can be used in unlimited combinations to distribute power to all loads at a facility. The extensive selection of switching and protection equipment available in metal -enclosed switchgearpermits users to implement these systems easily, reliably, and eco- nomically. This publication illustrates how the four basic circuit arrangements are implemented with metal -enclosed switchgear and diagrams a few of the virtually limitless power -distribution -system designs possible. With metal - enclosed switchgear, users will be able to take advantage of its many benefits to solve their power -distribution problems and to achieve the desired reliability, flexibility, and economy. In selecting metal -enclosed switchgear for medium - voltage power distribution systems, it is important to select components with ratings and capabilities equal to the duty and to examine the enclosure construction to make certain it matches the environmental and security requirements at the installation site. It is particularly critical to recognize the importance of metal -enclosed switchgear in main- taining continuity of power service to any facility. S&C metal -enclosed switchgear is unsurpassed in the quality and durability of its enclosure and components, reflecting more than 70 years of design and experience in this field. S&C Information Bulletin 620-55 Application To solve your power distribution problems, implement the four fundamental circuit arrangements: radial, looped -primary, common -bus primary -selective, and split -bus primary -selective with metal -enclosed switchgear. The Radial System This is the most widely used circuit arrangement in industrial, commercial, institutional, and high-rise installations. It is a simple system, and it is an economical one. And the simple and direct circuitry of the radial system facilitates quick location and repair of faulted circuits. Figure 1 illustrates an extremely simple radial sys- tem. Diagrammed is a two -bay lineup of metal -enclosed switchgear, commonly identified as a service • entrance, that serves the primary of a single transformer supplying a relatively small load. The transformer is switched and protected by the interrupter switch with power fuses. A more extensive system involving multiple radial cir- cuits serving segmented blocks of load —each switched and protected by interrupter switches with electronic power fuses or other power fuses —is illustrated in Figure 2 on page 4. Here, the service -entrance switching center uses an interrupter switch to connect the utility source to the bus serving three bays that feed radial circuits. These radial circuits demonstrate a variety of metal -enclosed switchgear that can be used to serve the loads. The util- ity source typically has protection at the riser pole which responds to a fault on the utility cable. This also protects for a fault on the main bus. In this case, the service entrance switching center typically does not require a main fuse. Main fuses can be provided as shown in Figure 6 on page 8 when required by the utility or when the utility cable loops to other switchgear. Use of multi -radial circuits segmented in this way per- mits individual protection for each transformer. The power fuse protecting a given transformer will clear and isolate any faults associated with the transformer, allowing con- tinuous service to the remaining loads on the system. The low cost of metal -enclosed switchgear when compared to circuit -breaker switchgear (metal -clad switchgear) is the key to the design of a system with a high degree of segmen- tation. The economics of circuit -breaker switchgear would normally dictate the use of fewer points of segmentation, resulting in more loads becoming affected by an outage caused by faults associated with any transformer or cable. Figure 1. Metal -enclosed switchgear applied as a service entrance on a simple radial system. S&C Information Bulletin 620-55 3 Application SrYtce=.ntianswitGhin,center ;Nie�eln$ bay Feedbays';. er Y��Ihstoi`rerpirilriaPy switct�geer Substation 77 Substaio, 1 switcttng; l �etlter L Figure 2. Multiple radial circuits are best switched and protected with metal -enclosed switchgear. 4 S&C Information Bulletin 620-55 Application The Looped -Primary System This system is more suitable than the multi -radial system for installations that have widely dispersed loads and require a higher level of power availability. It does not reduce the frequency of interruptions compared to a radial system, but it does permit quick restoration of service to the loads on the looped -primary feeder cable following a fault on the cable. See Figure 3. Typically, both ends of the looped primary circuit are connected to a single utility source, and provisions are made for sectionalizing the loop so power can be supplied to each load from either end of the circuit. (A loop could be made by connecting each end to a separate utility source. The application of such a loop is like that of a primary -selective system, as described on page 8.) Figure 3 shows a small, simple loop made completely with metal -enclosed switchgear. The four -bay service entrance switching center consists of an entrance bay, a utility metering bay, and two feeder bays. Each of the feeder bays provides switching and, using electronic power fuses, protection for its associated end of the looped -primary feeder cable. The loop is sectionalized with interrupter switches located in the entrance bays at each end of the multi -bay metal -enclosed switchgear lineups, which are applied as switching centers within the loop. Interrupter switches with power fuses in the feeder bays of these switching centers provide switching and protection for cable -connected loads, one of which is a medium -voltage motor. Under normal operating condi- tions, one interrupter switch near the center of the loop is open, as indicated in Figure 3. Should a fault occur on a section of the looped primary feeder cable, the electronic power fuse inthe service -entrance switching -center feeder bay serving that section of the loop operates to clear the fault. Selective manual switching operations can then be performed to isolate the faulted section of cable and permit restoration of medium -voltage power to all loads. Figure 3. A simple looped -primary system implemented totally with metal -enclosed switchgear using interrupter swncnes ana power fuses, including electronic power fuses. S&C Information Bulletin 620-55 5 Application In installations where load currents are high, the looped -primary system may be implemented as shown in Figure 5 on page 7. In the system depicted, the loop continu- ous currents exceed those that can be carried by fuses, so circuit -breaker switchgear, which has higher continuous current ratings, is used for switching and protection at the ends of the loop. Metal -enclosed switchgear is used for all the switch- ing centers within the loop. Interrupter switches, rated up to 1200 amperes continuous and interrupting, permit sectionalizing of the loop, and interrupter switches with power fuses, including electronic power fuses, provide for switching and protection of the loads. Although cir- cuit breakers and complex relaying could have been used throughout the loop to expedite the restoration of service to all loads following a cable fault, the high cost would not normally be justifiable, considering the infrequency of cable faults and the relative ease of restoring service with metal -enclosed switchgear. In addition, the use of power fuses (with their inherent fast response characteristics) instead of circuit breakers for protecting the loads permits more rapid interruption and isolation of faults on the lateral cables and transform- ers feeding the loads. This, in turn, allows faster relay settings to be used for the loop terminal breakers —a big advantage in that the resulting coordination greatly reduces cable fault interrupting times, minimizing short- circuit stresses on the system. Figure 4. Metal -Enclosed Switchgear providing switching and protection to a wastewater treatment facility. 6 S&C Information Bulletin 620-55 Application Figure 5. The ends of this looped -primary system are connected to the utility source with circuit -breaker switchgear. Metal -enclosed switchgear provides for switching and protection within the loop. A subloop is shown implemented with pad -mounted switchgear. S&C Information Bulletin 620-55 7 Application The Primary -Selective System This system, unlike the two systems previously described, provides a high degree of service continuity for critical loads by minimizing interruptions resulting from utility source failure. The utility source, because of its extensive exposure to such phenomena as lightning, wind, and ice, and to equipment failure, is the most vulnerable link in the power -supply chain. As such, system planners with critical loads to serve should first provide a primary -selective system to ensure continuity of the medium voltage supply from the utility before considering other systems that minimize interruptions caused by in -plant transformer or transformer -secondary equipment failures. The primary selective system may be implemented as either a common bus or a split -bus scheme, with manual, automatic, or remote -controlled switching. Common -Bus Primary -Selective System This system, shown in Figure 6, is a six -bay service entrance switching center with provisions for utility metering. A source -transfer control and switch -operator driven interrupter switches with electronic power fuses provide automatic two-way source transfer with the ability to connect either of the two utility sources to the switchgear's common bus. The electronic power fuses in the entrance bays provide protection for the switchgear's main bus and coordinate with feeder fuses. As described previously, segmenting the load into small blocks supplied by multiple radial circuits, or serving the load with looped primary circuits, will augment the service continuity and operating flexibility provided by the common -bus primary selective system. Under normal operating conditions in switchgear with automatic two-way source transfer, one switch (for the preferred source) is closed; the other switch (for the alternate source) is open with its associated circuit avail- able as standby. The source -transfer control monitors the condition of both power sources and initiates automatic switching when preferred -source voltage has been lost (or reduced to apredetermined level) for aperiod sufficient to confirm the loss is not a transient condition. The switch associated with the preferred source is automatically opened and the alternate -source switch is then automati- cally closed, restoring power to the load. Two-way source transfer provides for either automatic retransfer to the preferred source when normal voltage returns for a preset time (Automatic Return mode) or manual retransfer to the preferred source at a convenient time (Hold Return mode). In the Hold Return mode, if the alternate source fails and if the preferred source has been restored, the switchgear will automatically retransfer to the preferred source. Figure 6. Metal -enclosed switchgear is available with switch operators and source -transfer controls to effect two-way source transfer in common -bus primary -selective switchgear lineups such as diagrammed above. Either of the two sources may be the preferred source. The other source then serves as the alternate source. Manually operated interrupter switches with power fuses switch and protect the load feeders. 8 S&C Information Bulletin 620-55 Application In the Automatic Return mode, two-way source trans- fer provides for selection of either Open Transition or Closed Transition operations for retransfer to the pre- ferred source. In the Open Transition operation —which prevents paralleling the power sources —the alternate source switch opens before closing the preferred -source switch; there is only a momentary interruption of service to the load. With the Closed Transition retransfer opera- tion —selected when it is permissible to parallel the two sources so no interruption of service to the load occurs — the alternate -source switch opens after the preferred source switch has closed. Common -Bus Primary -Selective With A Standby Generator The common -bus primary -selective system can be applied to provide automatic source transfer between a utility source and a standby generator. The generator does not parallel with the utility. This approach may be taken to simplify the installation or minimize costs when a short service interruption is allowable. The generator output breaker in Figure 7 should be a power -operated breaker. The power -operated breaker has a motor operator to charge the operating mechanism. The breaker will close when the generator is ready to accept load and open when it is not carrying load or to clear a cable fault. Generator controls should be located in the generator. Under normal operating conditions in switchgear with automatic two-way source transfer, one switch (for the t1#iify (Preferred Source utility source) is closed; the other switch (for the standby generator) is open and the generator is not running. The source -transfer control monitors the condition of the utility power source and closes a dry contact to signal the genera- tor control as soon as utility source voltage has been lost or reduced to a predetermined level. The generator control provides a time delay for a period of time sufficient to confirm the loss is not a transient condition. If the utility source has not returned before the end of that period, the generator control starts the generator. When the standby generator is available to accept load, the transfer control initiates automatic switching. The switch associated with the utility is automatically opened and the alternate -source switch is then automatically closed, restoring power to the load. Two-way source transfer provides for either automatic retransfer to the preferred source when normal voltage returns for a preset time (Automatic Return mode). The transfer control should be programmed for open transition (break before make) so the generator will not be paralleled with the utility because the generator does not sync with the utility. Enable the Transition Dwell Timer to protect motors from being connected to another source that may not be in sync. Set this timer so the bus is de -energized long enough to cause motors to drop off line. This time is often called dead bus time and is the time between opening one switch and closing the other switch. Dry contacts signal the generator control that the load has been transferred back to the utility. The generator control can then begin the cool -down cycle. 1 Genera#or _ J (Alternate Source) �=.,` Generator Outptat Breaker' Figure 7. Metal -enclosed switchgear for automatic source transfer from a utility source to a standby generator. S&C Information Bulletin 620-55 9 Application The standby system may consist of multiple genera- tors with paralleling switchgear at low -voltage as shown in Figure 8. The tie breaker in Figure 7 on page 9 should be a power - operated breaker. The power -operated breaker has a motor operator to charge the operating mechanism. The breaker will close when the generator is ready to accept load and open when it is not carrying load or to clear a cable fault. Generator controls should be located in the paralleling switchgear. Split -Bus Primary -Selective System In the basic split -bus primary -selective system, the switchgear bus is divided into two sections by a bus -tie switch, as illustrated in Figure 9 on page 11. The diagram depicts a nine -bay metal -enclosed switchgear lineup, with automatic operation of the two source -interrupter switches and the bus -tie switch provided by switch operators and a source transfer control. Again, segmenting the load with multiple radial circuits or serving it with looped -primary circuits complements service continuity and operating flexibility. In the switchgear lineup diagrammed in Figure 9 on page 11, each section of the split bus serves two feeder bays that provide switching and protection for the loads. A secondary selective system (described on page 11) provides an added measure of service continuity to the especially critical loads connected to the two transformers. Switchgear of this configuration normally operates with the two source -interrupter switches closed and the bus -tie switch open so each bus section receives power from its associated, separate source. Typically, each source cable is sized for normal operating conditions —and is loaded to rated capacity —because under emergency conditions most installations have some loads that can be shed, making it unnecessary for either source to carry the switchgear's total load over an extended period. The switchgear pro- vides the same high degree of service continuity as the common -bus primary -selective switchgear described on page 8. Moreover, by simultaneously using both sources, it can supply larger concentrated loads, thereby often obviat- ing the need for multiple switching centers. In addition, the serving utility benefits from a more evenly loaded system that precludes the need for idle substation and feeder capacity. That, in turn, reduces the likelihood of intolerable system disturbances occurring when a source transfer involving the entire load occurs. Each source, in effect, is the preferred source for its section of the bus and the alternate source for the other section of the bus. Upon loss of voltage from one source, the interrupter switch associated with that source opens and the bus -tie switch closes so all the load is served from the remaining source. Retransfer to the normal circuit configuration —bus -tie switch open and both source inter- rupter switches closed —may be performed on restoration of normal voltage with the same selection of programming modes as described for the common -bus primary -selective system. Even greater operating flexibility —and an unusually high degree of service continuity —may be achieved by sectionalizing the switchgear bus into more than two sec- tions with multiple bus -tie switches and using additional sources of power (each source supplying one of the bus sections). Extension of the split -bus primary -selective system in this way permits the design of very sophisticated primary -selective switching schemes. Figure 8. Metal -enclosed switchgear for automatic source transfer from a utility source to a bank of standby generators with paralleling switchgear. 10 S&C Information Bulletin 620-55 Application Other Considerations for Primary -Selective Systems Unbalance Detection This feature, which may be incorporated into source transfer controls to protect three-phase loads from voltage unbalance, initiates automatic transfer in response to any source -side open -phase condition at the same system voltage as the metal -enclosed switchgear—whether caused by utility -line burn -down, broken conductors, single -pole switching, equipment malfunctions, or single -phasing resulting from blown source -side fuses. Such a feature, to be effective, must detect the open -phase condition, even if backfeed results in normal -magnitude voltage appearing on the opened phases. One method that has proved successful develops and monitors the phasor sum of the line -to -ground voltages of each source and can, therefore, detect three-phase voltage unbalance, which exists under virtually all open -phase conditions. Overcurrent Lockout This feature may be included in source -transfer controls to prevent a transfer operation that would close a source switch or bus -tie switch into a fault, thereby avoiding utility system disturbances. To implement this scheme, three-phase current sensing is required in the metal - enclosed switchgear. When this sensing scheme detects an overcurrent caused by a fault that is cleared by the source -side protective device, the prolonged loss of voltage causes the associated source interrupter switch to open. At the same time, a Lockout mode is set up in the source transfer control so the alternate -source switch operator (a bus -tie switch operator in the case of two-way source transfer with a bus -tie switch) will not automatically close its switch into the fault. (When the overcurrent is caused by a fault cleared by feeder fuses, there is no prolonged loss of voltage, so the source -transfer control does not initiate any switching operations.) Can other circuit arrangements improve further upon service continuity? Primary -selective systems of the types just described generally can be designed to provide the desired degree of protection against source failure —the most common cause of service disruption in a medium -voltage power system. To further improve service continuity for extremely critical loads, consideration is sometimes also given to the addition of Secondary Selective systems or Secondary Network systems to provide protection against transformer failure. The Secondary -Selective System This system consists of circuits joined on the secondary sides of transformers by normally open tie breakers. A critical load divided into two parts and served by two transformers connected to the primary distribution system is illustrated in Figure 9. Should a transformer failure occur, the load served by that transformer is automatically transferred to the secondary of the other transformer. This system clearly requires considerable additional expense and is usually not justifiable unless the criticality of the load requires more reliability than can be achieved with the primary -selective system alone. Figure 9. Split -bus primary -selective metal -enclosed switchgear, in addition to providing a high degree of service continuity, permits supplying large loads with one switching center through full utilization of both utility sources. Under normal operating conditions, each bus section receives power from its associated, separate source. The bus -tie switch and the two source interrupter switches are driven by switch operators that both open and close the switches, either automatically or manually, depending upon the operating mode selected. The source -transfer control monitors source voltages and switch operation, keeping power interruption to a minimum. Load feeders are switched and protected by manually operated interrupter switches with power fuses. S&C Information Bulletin 620-55 11 Application The Secondary -Network System This system is sometimes used for concentrated critical loads. However, the very substantial added cost for network protectors and special oversized transformers makes this system economically prohibitive for most applications. Moreover, protection from faults in the network secondary bus depends on such faults burning clear and self -extinguishing, without de -energizing the system. Consideration must be given to the hazards if such faults do not burn clear —a problem that is eliminated with radial or primary -selective systems that have been properly fused. The Resistance -Grounded System This is a special type of system that can use any of the basic circuit arrangements and is often used on medium - voltage industrial power systems to reduce equipment damage caused by ground faults and from transient overvoltages caused by restriking ground faults. Shown in Figure 10 is a low -resistance -grounded system with the neutral grounding resistor —connected between the secondary neutral of the source -side transformer and ground —selected to limit single -phase -to -ground fault currents to less than 800 amperes. The resistor does not limit the fault current between phases, only fault current to ground. High-speed automatic switching of resistance -limited ground faults is made possible on each feeder circuit of the switching center with interrupter switches power - operated by switch operators. On each feeder circuit, a window -type current transformer (CT) provides sensing for a latching -type ground-overcurrent relay, and a timer provides coordination with overcurrent-blocking relays. " gntrance bay Sensing for these blocking relays is provided by other window -type CTs in the entrance bay. The combination of a ground-overcurrent relay with a timer and the blocking relays ensures the feeder switch operates only on single- phase -to -ground faults; the fuses clear all other faults before the interrupter switch opens. In the system diagrammed in Figure 10, consider a phase -to -ground fault occurring at the point indicated. Such faults are sensed by the CT on the affected feeder circuit, and the associated overcurrent relay and timer are then actuated. The fault current is limited by the resis- tance and, when the timer times out, the switch is tripped open. Operating time with high-speed switches is typically 10 cycles —a 6-cycle delay for the timer plus a 4-cycle oper- ating time for the switch. Blocking relays in the entrance bay are set so the magnitude of the current sensed by the associated CTs on single -phase -to -ground faults is not sufficient to actuate the blocking relays. For multi -phase faults involving ground, the fault cur- rent is sensed by all the CTs and will exceed the setting of the blocking relays. The blocking contacts are actuated instantly, blocking control power to the timer. However, the relay associated with the CT on the faulted circuit is also actuated. After the fuse clears the fault, the blocking relays drop out. Then, because a latching relay is used in conjunction with the CT in the feeder bays, the timer is energized. After the timer times out, the switch is tripped open, isolating the faulted circuit. Note: This application can be used when the neutral - grounding resister is connected to the transformer feed- ing the switchgear as shown in Figure 10. It can't be used when the neutral -grounding resister is connected to a downstream transformer. Switchtrig center Feeder bays. Figure 10. Resistance -grounded system has resistor connected between secondary neutral or source transformer and ground. 12 S&C Information Bulletin 620-55 Application Figure 11. To serve widely dispersed loads in a large plant, the four fundamental circuit arrangements are often combined in a complex distribution system. Illustrated here is an in -plant medium -voltage power distribution system that uses a split -bus primary -selective circuit, a looped -primary circuit, and radial circuits. To ensure maximum service continuity for extremely critical loads, a secondary selective system has been added to two of the transformers served by the switching center of the split -bus primary -selective circuit. S&C Information Bulletin 620-55 13 Power fuses provide protection for your transformers and feeder cables... with load capabilities and fault ratings to suit almost any application. Power fuses used in metal -enclosed switchgear should provide full -fault -spectrum protection for individual midsize to large power transformers and for feeder circuits serving multiple loads. S&C Power Fuses offer such protection and many other benefits as well. When protecting individual transformers with S&C Power Fuses, full -fault -spectrum protection means the fuse will detect and even interrupt all faults, regardless of whether: • They are large, medium, or small (even down to mini- mum melting or tripping current) • They are on the primary or secondary side • They are with line -to -line or line -to -ground voltage across the fuse • The transformer is adjacent to the switchgear or cable - connected to it from a remote location • Transformer -winding connections are all the same type S&C Power Fuses can handle the full range of transient recovery voltages associated with these conditions. Also, they allow fusing closer to the transformer full -load cur- rent than is possible with ordinary current -limiting fuses, providing the maximum degree of protection against secondary faults. S&C Power Fuses thus furnish protec- tion against faults in the secondary buswork ahead of the secondary -side protective devices and, furthermore, sup- ply backup protection in the event of incorrect functioning of the secondary -side protective devices, even in the lower ranges of the faults, where the current may be as low as 230Vo of the transformer full -load rating. S&C's Fault Fiter® Electronic Power Fuses and SM Power Fuses have surge capacities more than adequate to withstand transformer magnetizing current inrush, as well as the combined transient inrush of magnetizing and load currents following a momentary interruption of source voltage —a performance characteristic not gener- ally found in other makes of fuses. When protecting feeders serving multiple loads, S&C Power Fuses provide source -side continuity should feeder cable faults occur. And they develop a positive internal gap of high dielectric strength after circuit interruption, thus precluding destructive re -ignitions when exposed to full system voltage —such as is experienced with current - limiting fuses after clearing under low recovery voltage conditions. A wide selection of ampere ratings and speeds of S&C Power Fuses and a variety of types and TCC curve parameters of S&C Fault Fiter Electronic Power Fuses permit precise coordination with protective relays and other fuses in both the load -side and the source -side cir- cuits. Comprehensive fuse -application data are available from the fusing specialist at the nearest S&C Sales Office. To help in initial planning, Table 1 on page 16 shows the maximum short-circuit ratings of S&C Metal -Enclosed Switchgear (fuse -interrupting ratings equal or exceed these values) and the maximum three-phase loading (in kVA) that may be carried per fused feeder bay, between 2.4 and 34.5 kV. Two loading levels are given: one is the maximum continuous load in terms of total connected transformer kVA, and the other indicates the peak loading that can be accommodated during emergency conditions. S&C Power Fuses will: • Withstand magnetizing inrush currents associated with the total connected transformer kVA listed • Carry load currents associated with the kVA values listed as Permissible Peak Load values • Withstand the combined transient inrush of magne- tizing and load currents associated with energizing transformers loaded to the values listed under the Permissible Peak Load values following a momentary interruption of source voltage The switchgear short-circuit ratings and loading capa- bilities shown in Table 1 on page 16 are based on the S&C Power Fuse that offers the maximum loading and inter- rupting values at the given system voltage. The nearest S&C Sales Office will assist customers in selecting the most economical power fuse for a particular application, and help customers choose the specific fuse rating and response characteristics that will provide the maximum protection and optimal coordination. Single-phase protection for the load (specify for grounded systems if required) Open -phase detection relays are provided for power - operated feeder bays (outgoing) to protect three- phase loads from open -phase conditions occurring on downstream circuits energized at the same voltage as the metal -enclosed switchgear. This condition is usually caused by blown feeder bay fuses. It also can be caused by source -side open -phase conditions occurring on upstream circuits energized at the same voltage level as the metal - enclosed switchgear such as blown fuses or single-phase protective devices at the riser pole, utility -line burndown, broken conductors, single-phase switching and equipment malfunctions. The relay trips the associated switch operator for a loss of one or two phases but not for a loss of all three phases. Note: This relay uses voltage sensors or voltage trans- formers connected phase -to -ground to detect open - phase conditions. 14 S&C Information Bulletin 620-55 Application Single-phase protection for the load (specify for grounded or ungrounded systems if required) Specialty current -detection relays are provided for power -operated feeder bays (outgoing) to protect three- phase loads from single -phasing conditions occurring on downstream circuits energized at the same voltage as the metal -enclosed switchgear. This condition is usually caused when feeder bay fuses operate to clear a downstream fault. It also can be caused by operation of a source -side protective device for a fault. The relay detects current to a downstream fault followed by an absence of current in one or two phases to determine the loss of one or two phases. When that happens, the overcurrent relay will trip the associated switch operator after the downstream fault has been cleared. The relay does not trip the associated switch operator for a loss of all three phases. Note: The relay uses current sensors to monitor phase current and to detect open -phase conditions. Normal service conditions Switchgear and components are intended to be used in accordance with their rated characteristics and the normal (usual) service conditions listed below. • The ambient air temperature does not exceed 400C (104°F) or fall below minus 300C (minus 22°F). • Altitude at the site does not exceed 1000 m (3280 ft) above sea level. Special service conditions (specify if required) The user's requirements should be specified when the switchgear will be applied under conditions different from those shown in normal service conditions. Construction features Dust -resistant construction (specify if required) Dust -resistant construction helps protect the switchgear when there is a high concentration of airborne dust at a site. Provide foam gasket: • Between bays at the top and front and rear edges • For any flat panels such as indoor roof or removable plate to extend the main or ground bus Provide neoprene gasket: • Completely around the opening of doors and hinged panels • Along the top and sides of main bus openings • For any items mounted on the exterior of the bay includ- ing door handles, viewing panes and manual switch operating handles All vents have externally removeable glass -fiber filters. Drip -resistant feature for indoor switchgear (specify if required) Drip -resistant construction to help protect indoor switchgear when there is a possibility that liquid may drip on indoor switchgear. Provide foam gasket: • Between bays at the top and front and rear edges • For any flat panels such as indoor roof or removable plate to extend the main or ground bus Provide neoprene gasket: • At the top of doors and hinged panels • Along the top and sides of main bus openings • For any items mounted on the exterior of the bay includ- ing door handles, viewing panes and manual switch operating handles Enclosure categories Switchgear assemblies are installed in a variety of locations. Some are accessible by the general public and some are not. The enclosure of the switchgear assembly provides a degree of protection for internal energized parts and a degree of protection for authorized personnel against unintended contact with live parts. Enclosures are categorized by IEEE as Category A, B, or C. Category A enclosures Category A enclosures are intended to provide a degree of protection against contact with live parts within enclosed equipment in ground -level installations where the general public has access to the switchgear because it is not enclosed in a locked area. Category B enclosures Category B enclosures are intended for use in installations not accessible to the general public and primarily provide a degree of protection to personnel against unintended contact with live parts within the equipment. This category should be in a locked area accessible only to authorized personnel. Category C enclosures Category C enclosures are for designs that have exposed live parts, such as roof bushings, and should be in a locked area accessible only to authorized personnel. Hazardous locations Metal -Enclosed switchgear is not suitable for application in areas classified by the National Electrical Code as a hazardous location. S&C Information Bulletin 620-55 15 Ratings Summary Table 1. S&C Metal -Enclosed Switchgear—Maximum 60-HertzO Short -Circuit Ratinas and Three -Phase Load Nominal 4.16 4.8 13.8 Voltage, kV I Max 4.8 5.5 17.0 BIL 60 60 95 Main Bus, Continuous Amperes 600, 1200, or 2000 600, 1200, 600, 1200, or 2000 or 2000 Switchgear Amperes, Ratings Short- RMS, 37 500 (40 000) (40 000) 25 000 (34 600) 25 000 (34 600) (40 000) (40 000) (40 000) (40 000) (40 000) (40 000) Circuit, and Sym.Qs Two -Time MVA, Duty -Cycle Fault- 3-Phase Closing, as applicable Sym. at Nom. 155 (290) (330) 310 (430) 360 (500) (830) (860) (915) (960) (1000) (1140) ® © System Voltage Max 3-Phase Load Continuous Load, kVA 3000 (8600) (10 000) (5000) (5800000 40) (5 (24 900) (25 900) (27 400) (28 000) (29 900) (34 200) per Fused Feeder® Permissible Peak Load, kVA 3300 (11 600 ) 13 400 ( ) 9900 (5500) 11 400 (6300) (33 300) (34 600) (36 600) (38 300) (40 000) (45 800) U For 50-Hartz ratings, consult the nearest S&C Sales Office. Qz For each column that contains two sets of values, the set of values in parentheses provides a higher short-circuit rating but a lower continu- ous load capability than the set of values not in parentheses. 3p Three-phase load capabilities are based on an ambient tempera- ture of 30°C (86°F) inside the switchgear enclosure. Furthermore, Per- missible Peak Load values are based on the Y-hour daily emergency peak -load capabilities for the applicable power fuse. For three-phase load capabilities based on ambient temperatures greater than 30°C (86°F) or for Permissible Peak Load values based on daily emergency peak -loads longer than a half-hour, consult the nearest S&C Sales Office. Table 1. S&C Metal -Enclosed S, Ratinqs and Three -Phase Load ® The duty -cycle fault -closing ratings listed in parentheses are one-time ratings. The associated two-time duty -cycle fault -closing ratings are 25,000 amperes symmetrical, 40,000 amperes asymmet- rical, except for switchgear rated 25 kV nominal where the two-time duty -cycle fault -closing ratings are 20,000 amperes symmetrical, 32,000 amperes asymmetrical. Qs The short-circuit interrupting ratings and the duty -cycle fault -closing ratings expressed in amperes RMS asymmetrical are 1.6 times the symmetrical ratings listed. An exception applies to the 40,000 amperes symmetrical ratings where the corresponding asymmetrical value is 61,000 amperes. © Fault -closing ratings not available for 46-kV switchgear. • For 150-kV BIL applications, consult the nearest S&C Sales Office. num 60-HertzO Short -Circuit ntinued Nominal 25 34.5 44 Voltage, kV Max 29 38 48.3 BIL 125 or 1500 150 or 200 250 or 350 Main Bus, Continuous Amperes 6001200, or 2000 , 600, 1200, 600 or Switchgear Ratings or 2000 1200 Amperes, Short- Circuit, and RMS, 20 000 (40 000) (40 000) (40 000) 17 500 17 500 20 000 Sym.@ Two Time MVA, Duty -Cycle Fault- 3-Phase Closing, as applicable Sym. at Nom. 570 (1590) (1720 ) 1910 ( ) 835 1050 1520 ® © System Voltage Max Continuous Load, kVA 11 400 (47 700) (51 700) (57 300) 14 300 17 900 22 800 3-Phase Permissible Peak Load, Load per Fused kVA 12 000 (63 700) (69 000) (76 500) 17 900 22 400 27 400 Feeder(j) The footnotes above this table apply to this section 16 S&C Information Bulletin 620-55 Standard Conditions of Sale I Immediate Purchasers in the United States GENERAL: These Standard Conditions of Sale ("Stan- dard Conditions"), together with any special conditions of sale set forth in the applicable product -line specifica- tion bulletins, any supplements or modifications hereto or thereto confirmed in writing by the acknowledgment of S&C Electric Company ("S&C"), and any written specifications, quotations, or certifications signed by an authorized executive of S&C (collectively, "Con- ditions of Sale"), shall constitute the complete and exclusive conditions for the sale of goods ("Goods") by S&C to the immediate purchaser, and such Condi- tions of Sale shall supersede all prior communications and agreements regarding same. In no event shall the sale of Goods be subject to any affirmation of fact or promise that relates to the application, performance, or description of the Goods unless such affirmation or promise is in writing and signed by an authorized executive of S&C or is confirmed in writing by S&C's acknowledgment. ANY TERMS, WHETHER IN A PUR- CHASE ORDER OR OTHER DOCUMENT OF THE IMMEDIATE PURCHASER, IRRESPECTIVE OF THEIR MATERIALITY, THAT ARE EITHER DIFFERENT FROM OR ADDITIONAL TO S&C'S CONDITIONS OF SALE AS SET FORTH HEREIN, ARE OBJECTED TO AND ARE EXCLUDED UNLESS EXPRESSLY AGREED TO IN WRITING BY S&C. Acceptance of the Goods shipped shall constitute assent to be bound by the Conditions of Sale. The immediate purchaser shall inspect the Goods within seven (7) days of receipt ("Inspection Period"). The immediate purchaser will be deemed to have accepted the Goods unless it notifies S&C in writ- ing of any nonconforming goods within the Inspection Period. Failure to reject the Goods or otherwise object to the Conditions of Sale in writing within seven (7) days of receipt shall constitute assent to these Conditions of Sale. In special transactions involving a formal invitation to bid and a formal award by purchase contract, or in the event a master purchase agreement signed by S&C and the immediate purchaser is in existence, these Condi- tions of Sale apply only to the extent not inconsistent with the purchase contract. NONASSIGNABLE SOFTWARE LICENSE: Certain software, computer programs, source code, object code, listings, and related materials, in machine-readable or printed form, including firmware and all types of media, and all updates and modifications thereto ("Software"), may be delivered by S&C to the immediate purchaser together with each product. Such Software is furnished to the immediate purchaser or, if the product is pur- chased by a third party for installation in third -party equipment, the end user of the Goods, under a nonexclu- sive license for use solely on a single product, and may not be modified or copied, in whole or in part, nor may it be transferred or sublicensed. The immediate purchaser shall preserve any and all copyright notices included in the Software. Except as set forth herein, or as may be permitted in writing by S&C, the immediate purchaser shall not provide or otherwise make available the Soft- ware or any part of copies thereof to any third party. Title to, ownership of, and all applicable rights in patents, copyrights, and trade secrets in the Software shall not transfer to the immediate purchaser or end user. The immediate purchaser agrees to take appropriate action by instruction or agreement with its employees who are permitted access to the Software to fulfill its obligations hereunder. LIMITED WARRANTY- (1) General: S&C warrants to the immediate pur- chaser for a period of two (2) years from the date of shipment that the Goods delivered (excluding Software, which is warranted as specified in para- graph (2) on page 2) will be of the kind and quality specified in the contract description and will be free of defects of workmanship and material. Should any failure to conform to this warranty (or to any addi- tional warranty contained in the special conditions of sale set forth in the applicable product -line specifi- cation bulletin) appear under proper and normal use within two (2) years after the date of shipment, S&C agrees, upon prompt notification thereof and confir- mation that the Goods have been stored, installed, operated, and maintained in accordance with recom- mendations of S&C and standard industry practice, to correct the nonconformity either by repairing any damaged or defective parts of the Goods or at S&C's sole option by shipment of necessary replacement parts. S&C shall not be liable for a breach of the warranty set forth herein if the immediate purchaser makes any further use of the Goods after giving notice of a defect. S&C's warranty does not apply to any Goods that have been disassembled, repaired, or altered by anyone other than S&C. This limited warranty is granted only to the immediate purchaser or, if the Goods are purchased by a third party for installation in third -party equipment, the end user of the Goods. S&C's duty to perform under any war- ranty may be delayed, at S&C's sole option, until S&C has been paid in full for all Goods purchased by the immediate purchaser. No such delay shall extend the warranty period. January 20, 2025 © S&C Electric Company 1959-2025, all rights reserved Price Sheet 150 Standard Conditions of Sale I Immediate Purchasers in the United States S&C further warrants to the immediate purchaser or end user that for a period of one (1) year from the date of shipment, the Software will perform substan- tially in accordance with the then -current release of specifications if properly used in accordance with the procedures described in S&C's instruc- tions. S&C's liability regarding any of the Software is expressly limited to exercising its reasonable efforts in supplying or replacing any media found to be physically defective or in correcting defects in the Software during the warranty period. S&C does not warrant the use of the Software will be uninter- rupted or error -free. (2) Limitation: The warranty and/or obligations described in the foregoing paragraphs, including any additional warranty contained in the special conditions of sale, are exclusive, and the remedies provided herein for breach of these warranties shall constitute the immediate purchaser's or end user's exclusive remedies and a fulfillment of all of S&C's liability. In no event shall S&C's liability to the immediate purchaser or end user exceed the price of the specific product that gives rise to the imme- diate purchaser's or end user's claim. S&C shall not be responsible for providing temporary power, reimbursement for lost revenue, costs associated with the removal, installation, or labor costs or obtaining working access to the nonconforming Goods, including any disassembly and reassembly of equipment that was not supplied by S&C. S&C shall also not be responsible for providing transporta- tion to or from any repair facility, or for any other expenses incurred in connection with the repair or replacement of the Goods, all of which shall be at the immediate purchaser's risk and expense. S&C's warranties do not apply to major components not of S&C manufacture. However, S&C will assign to the immediate purchaser or end user all manufacturers' warranties that apply to such major components. All other warranties whether express or implied or arising by operation of law, course of dealing, usage of trade or otherwise, are excluded. The only war- ranties are those stated herein, and THERE ARE NO EXPRESS OR IMPLIED WARRANTIES OF MER- CHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. ANY EXPRESS WARRANTY OR OTHER OBLIGATION PROVIDED HEREIN IS GRANTED ONLY TO THE IMMEDIATE PURCHASER AND END USER, AS DEFINED HEREIN. OTHER THAN AN END USER, NO REMOTE PURCHASER MAY RELY ON ANY AFFIRMATION OF FACT OR PROM- ISE THAT RELATES TO THE GOODS DESCRIBED HEREIN, ANY DESCRIPTION THAT RELATES TO THE GOODS, OR ANY REMEDIAL PROMISE INCLUDED IN THESE STANDARD CONDITIONS OF SALE. LIMITATION OF LIABILITY- (1) S&C shall not be liable, in contract, tort, or other- wise (including for negligence, breach of warranty, indemnity, and strict liability) for any penalty or for any special, consequential, indirect, or incidental damages, whether for personal ir;jury or property damage, including specifically but without limitation, loss of profits or revenue, loss of other equipment, loss of full or partial use of any equipment or facil- ity, downtime costs, business interruption, any claim arising out of loss of electrical power, cost of capital, loss of goodwill, claims of third parties, costs asso- ciated with the removal of the Goods and/or other equipment from service or reinstallation or disas- sembly or reassembly, or similar damages, arising out of or resulting from this order or transaction. (2) In no event shall S&C's aggregate liability arising out of or related to the Conditions of Sale, any purchase order, or the Goods, or any claim whatsoever, exceed the value of the applicable purchase order for the Goods sold under the applicable purchase order. (3) All causes of action against S&C arising out of or relating to the Conditions of Sale, or the performance or breach hereof shall expire unless brought within one year of the time of accrual thereof. (4) In no event, regardless of cause, shall S&C be liable for penalties or penalty clauses of any description or for indemnification of the immediate purchaser or others for costs, damages, or expenses arising out of or related to the Goods. NUCLEAR: For applications in a nuclear facility, the immediate purchaser and/or end user shall have com- plete insurance protection against liability and property damage resulting from a nuclear incident and shall indemnify S&C, its affiliates, subcontractors, suppliers, and vendors against all claims resulting from a nuclear incident. WILDFIRE: For applications in Wildfire -Prone Regions, the immediate purchaser and/or end user shall have complete insurance protection against liability and prop- erty damage resulting from a Wildfire Incident and shall indemnify S&C, its affiliates, subcontractors, suppliers, and vendors against all claims resulting from a Wild- fire Incident. As used in this document, Wildfire -Prone Regions means, without limitation, mountainous, forest - covered land; brush -covered land; grass -covered land; land covered with flammable material; and/or land desig- nated by a federal, state, or local government or agency as a fire hazard zone. Wildfire Incident means an unplanned or unwanted wildland fire, including authorized human - caused fires, escaped wildland fire use events, escaped prescribed fire projects, and all other wildland fires where the objective is to extinguish the fire. 2 S&C Price Sheet 150 Standard Conditions of Sale ( Immediate Purchasers in the United States TERMS OF DELIVERY- (1) Risk of Loss. Unless otherwise agreed, for all ship- ments, risk of loss of the Goods or any part thereof shall pass to the immediate purchaser upon S&C's delivery of the Goods to the common carrier. 2) Allowance for Freight. (a) Deliveries within the United States except Alaska and Hawaii (The Lower 48). For orders with net value of $10,000.00 or more, prices include freight by S&C's selection of transportation to com- mon carrier delivery point nearest first destination, unless otherwise specified in the quotation. For orders with net value less than $10,000.00, freight is collect or prepaid and added to the invoice. (b) Alaska and Hawaii. For orders with net value of $10,000.00 or more, prices include freight by S&C's selection of transportation to common carrier delivery point nearest first destination within The Lower 48, unless otherwise specified in the quota- tion. For orders with net value less than $10,000.00, freight is collect or prepaid and added to the invoice. (3) Surcharges. S&C reserves the right in its sole dis- cretion to add surcharge(s) to the quotation and/or invoice for increased costs related to, without limita- tion, freight, fuel, change in law, and/or tariffs. (4) Method of Transportation and Routing. S&C will determine the method of transportation and the rout- ing of the shipment. Where the immediate purchaser requires shipment by a method of transportation or routing other than that of S&C's selection, any addi- tional transportation and/or packing expense is to be borne by the immediate purchaser. (5) Export Packing. Where "export packing" is required, an extra charge may be added to the quota- tion and/or invoice. (6) Unloading of Shipments. Provision of suitable facilities and personnel at delivery point for unload- ing of shipments shall be the responsibility of the immediate purchaser. (7) Partial Shipments. S&C may, in its sole discretion, without liability or penalty, make partial shipments of Goods to the immediate purchaser. Each shipment shall constitute a separate sale, and the immediate purchaser shall pay for the units shipped whether such shipment is in whole or partial fulfillment of immediate purchaser's order. In the event the imme- diate purchaser requests that S&C hold some or all of the Goods or otherwise postpones shipment beyond the scheduled date of shipment, a storage fee will apply, and a separate bill -and -hold agreement will be required. TERMS OF PAYMENT: Net 30 days. Except with respect to Software (for which title shall not pass, use being licensed), title of the Goods shall pass to the immediate purchaser only upon full and complete pay- ment to S&C. As collateral security for the payment of the purchase price of the Goods, the immediate pur- chaser grants to S&C a lien on and security interest in the Goods. S&C, in its sole discretion, may require revision of payment terms, including, but not limited to, a prepayment requirement, deposit, or progress/milestone payments, as set forth in the relevant quotation issued by S&C to the immediate purchaser, or if not specified in the quotation, as set forth herein. Further, S&C shall be entitled to cancel or defer any orders or items or quantities thereon then outstanding, without obligation by either the immediate purchaser or S&C with respect to unshipped Goods. If any payment is not made in full when due, S&C, in addition to any and all remedies hereunder and under law, shall be entitled to: (i) recover possession of the Goods shipped; (ii) require immediate purchaser to assemble any Goods shipped that are in its possession or control at a place to be designated by S&Q and (iii) with respect to any orders or items or quantities thereon then outstand- ing, require full or partial payment in advance or cancel or defer any of such orders or items or quantities thereon and require immediate purchaser to pay any and all damages incurred in connection with such cancellation or deferment. In the event any proceeding is brought by or against the immediate purchaser under any bankruptcy or insolvency laws, S&C shall be entitled to cancel any orders or items or quantities thereon outstanding as of the date of such bankruptcy or insolvency without liability. The immediate purchaser shall not withhold payment of any amounts due and payable by reason of any setoff of any claim or dispute with S&C, whether relating to S&C's alleged breach, bank- ruptcy or otherwise. HANDLING CHARGES FOR IMMEDIATE SHIP- MENTS: When immediate shipment of products, components, and/or parts is required, premium freight methods will be employed to minimize transportation time. Because of the extra attention required by such orders, a handling charge may apply, in addition to the extra charges for premium freight. PRICE ADJUSTMENTS: Prices stated on S&C's acknowledgment for orders, or items or quantities thereon, are not subject to upward or downward adjust- ment for a period of one (1) year from the date of order ("Initial Pricing Period") unless otherwise specified. Prices for orders, or items, or quantities may be increased after the Initial Pricing Period at S&C's sole discretion. S&C Price Sheet 150 Standard Conditions of Sale I Immediate Purchasers in the United States QUOTATIONS: Any price, quantity, or condition of sale stated in any quotation is effective for 30 days from date of quotation ("Effective Period") unless changed by writ- ten notice from S&C. No quotation shall have any force or effect after the Effective Period unless such Effective Period is expressly extended in writing by S&C. All orders, whether or not based upon specific quota- tions, are subject to acceptance by S&C only at its principal office in Chicago, Illinois. Subsequent to the issuance of quotations, S&C may, without notice, make design changes for product mod- ernization or improvement. S&C may make changes in the Goods as it deems necessary, in its sole discretion, to conform the Goods to the applicable specifications. If the immediate purchaser objects to any such changes, S&C shall be relieved of its obligation to conform to the applicable specifications to the extent that conformance may be affected by such objection. A materials surcharge may be applied to the net selling prices of Goods at the time of shipment, depending on the cost levels of purchased parts and materials in the preceding month. TAXES: Where S&C is required to pay or collect sales, use, or other taxes, the amount will be added to any invoice for Goods as a separate item. LOSS, DAMAGE, OR DELAY. Shipping dates are approximate and are based upon prompt receipt of all necessary information. S&C shall not be liable for any loss, damage, detention, or delay. INTELLECTUAL PROPERTY: S&C shall defend any suit or proceeding brought against the immediate pur- chaser so far as based on a claim that any product, or any part thereof, sold to the immediate purchaser constitutes an infringement or misappropriation of intel- lectual property rights of others if notified promptly in writing and given authority, information, and assistance (at S&C's expense) for the defense of same, and S&C shall pay all direct and measurable damages and actual costs awarded by a court of competent jurisdiction in any such action against the immediate purchaser, pro- vided, however, that this agreement shall not extend to any infringement based upon the manufacture, use, or sale of said product or any part or parts thereof, in combination with apparatus or things not furnished by S&C. In case the product, or any part thereof, furnished under a purchase order subject to the Conditions of Sale is in such suit held to constitute infringement and its use enjoined, S&C shall, at its own expense and at its option, either (1) procure for the immediate purchaser the right to continue using said product or part thereof; (2) replace the same with a noninfringing product; (3) modify said product or part thereof so that it becomes noninfringing; or (4) remove said product and refund the purchase price thereof. The foregoing states the entire liability of S&C with respect to infringement by said product or any part thereof. The preceding paragraph shall not apply to any equip- ment or product, or any part thereof, manufactured to the immediate purchaser's design or specifications. As to such equipment or product, or any part thereof, S&C assumes no liability whatsoever for infringement or misappropriation. To the extent that the Goods or any part thereof are modified by the immediate purchaser or combined by the immediate purchaser with equipment or processes not furnished under a purchase order subject to the Conditions of Sale (except to the extent that S&C is a contributory infringer), and by reason of said modification or combi- nation, an action is brought against S&C, the immediate purchaser shall defend and indemnify S&C in the same manner and to the same extent that S&C would be obli- gated to indemnify the immediate purchaser under this paragraph. CLERICAL ERRORS: S&C reserves the right to correct clerical errors or omissions in quotations, acknowledg- ments, invoices, or other documents. MODIFICATION, CANCELLATION, OR DEFER- MENT BY THE IMMEDIATE PURCHASER: Except as otherwise set forth herein, orders or purchase con- tracts may be modified or cancelled, and scheduled shipments may be deferred, upon the immediate pur- chaser's prior written notice; provided, however, that S&C shall have sole discretion to modify, cancel or defer any such order, purchase contract or scheduled shipments by issuing a revised acknowledgement to immediate purchaser; provided, further, that, in the event of cancellation by the immediate purchaser, the immediate purchaser shall be liable to pay S&C a cancel- lation charge as set forth in the relevant quotation issued by S&C to the immediate purchaser, or if not specified in the quotation, in accordance with the following schedule: (i) 25% of the purchase price of the Goods if the Order has been accepted/acknowledged by S&C and the Goods have not been shipped; (h) 50% of the purchase price of the Goods upon S&C's commencement of drawings, ordering of long lead time items, or general material requirements being driven (as applicable); or (iii) 100% of the purchase price of the Goods upon S&C's commence- ment of production of subassembly or final units, or if the Goods have shipped either in whole or in part. In the event of cancellation by the immediate purchaser occurring at a time after (i) or (ii), but before (iii) above, and the impacted production space cannot be utilized, S&C reserves the right to charge a cancellation fee of 100% of the purchase price of the Goods. The immediate purchaser shall be liable to pay all damages and charges incurred by S&C as a result of the immediate purchaser's modification, cancellation or deferment of any Order, including without limitation, carriage, packing and insur- ance charges imposed on S&C by its suppliers, and any other costs resulting from cancellation of the order or purchase contract. 4 S&C Price Sheet 150 Standard Conditions of Sale ( Immediate Purchasers in the United States Additional catalog number items may be added to, and/ or quantities of specified catalog numbers adjusted on, unshipped orders up to 10 business days from the order or purchase contract date upon S&C's written consent. Shipment schedules for additional items are dependent upon product availability; these items may not ship with the items originally specified on the order or purchase contract. TERMINATION: In addition to any remedies that may be provided under the Conditions of Sale or at law, S&C may terminate the Conditions of Sale and any sale or transaction subject to the Conditions of Sale with immediate effect upon written notice to the immediate purchaser, if the immediate purchaser: (i) fails to pay any amount when due under the Conditions of Sale or any purchaser order; (ii) has not otherwise performed or complied with any of the Conditions of Sale, in whole or in part; or (iii) becomes insolvent, files a petition for bankruptcy or commences or has commenced against it proceedings relating to bankruptcy, receivership, reor- ganization or assignment for the benefit of creditors. No termination by the immediate purchaser shall be effective unless S&C breaches or defaults under the Con- ditions of Sale and fails to initiate and pursue corrective action with due diligence to cure such default within a commercially reasonable period of time. ASSIGNMENT: S&C shall have the right, upon written notice to the immediate purchaser, to assign all or a por- tion of its rights and obligations under the Conditions of Sale or any purchase order. Purchaser may not assign any of its rights or delegate any of its obligations under the Conditions of Sale or related purchaser orders or agreements without the prior written consent of S&C. Any purported assignment by the immediate purchaser of the Conditions of Sale or related purchase order to which S&C does not consent in writing shall be null and void. FORCE MAJEURE: Neither party shall be liable to the other party, nor be deemed to have defaulted under or breached the Conditions of Sale, for any failure or delay in fulfilling or performing any obligations under the Conditions of Sale or any purchase order (except for any obligations of the immediate purchaser to make pay- ments to S&C hereunder), when and to the extent such failure or delay is caused by or results from acts beyond the party's reasonable control, such as, but not limited to: acts of God, acts of civil or military authority, pri- orities, fires, strikes, labor issues or difficulties, floods, earthquake, weather, pandemics, epidemics, quarantine restrictions, war, riot, delays in transportation, gov- ernment restrictions or embargoes, or difficulties in obtaining necessary labor, materials, and manufactur- ing facilities from usual sources because of such causes. In the event any such causes delay S&C's performance, the date of performance shall be extended by a period of time reasonably necessary to overcome the effect of such delay, and S&C's compensation shall be adjusted accordingly. S&C'S REMEDIES: The rights of S&C specified herein are cumulative and in addition to the rights available to S&C at law, in equity, by statute or under any other agree- ment between S&C and the immediate purchaser. No delay or failure by S&C to exercise any right or remedy shall impair any rights or remedies or be construed to be a waiver of any breach or acquiescence therein. Any single or partial exercise of any right or remedy shall not preclude other or further exercise thereof or the exercise of any other right or remedy. EXPORT COMPLIANCE: S&C is required to comply with applicable export laws and regulations of the U.S. For any sale made under this contract, the immedi- ate purchaser or end user shall not export, reexport, distribute, download, or supply any Goods, product, component, part, and/or Software other than to the ultimate country of destination specified in this con- tract, without obtaining prior, written authorization from S&C and the applicable U.S. Government agency. S&C reserves the right to suspend or cancel delivery of Goods, components, parts, and/or Software to the imme- diate purchaser or end user or cancel this contract in its entirety, without liability to S&C, if S&C has a good faith basis for believing the immediate purchaser or end user has violated or intends to violate this paragraph. COMPLIANCE WITH ANTI -BRIBERY LAWS: The U.S. Foreign Corrupt Practices Act ("FCPA') and laws in other countries strictly prohibit the payment of bribes, kickbacks, or similar payments to influence business. The immediate purchaser or end user agrees not to take any action whatsoever to wrongfully influence any decisions in its or S&C's favor relating to Goods sold hereunder, either directly or indirectly. EEO COMPLIANCE: S&C shall abide by the require- ments of 41 CFR §§ 60-1.4(a), 60-300.5(a) and 60-741.5(a). These regulations prohibit discrimination against quali- fied individuals based on their status as protected veterans or individuals with disabilities and prohibit discrimination against all individuals based on their race, color, religion, sex, or national origin. Moreover, these regulations require that covered prime contractors and subcontractors take affirmative action to employ and advance in employment individuals without regard to race, color, religion, sex, national origin, protected veteran status or disability. GOVERNING LAW AND JURISDICTION: The Conditions of Sale are governed by, and construed in accordance with, the laws of the State of Illinois, with- out regard to conflicts of law principles. The immediate purchaser consents and submits to the personal juris- diction and exclusive venue of Illinois state courts and the Northern District of Illinois for the purpose of any suit, action, or other proceeding arising out of or with respect to the Conditions of Sale, any purchase order, or the Goods. Note: To report any ethics or compliance concerns, please contact, openly or anonymously, the S&C Helpline at sande.ethicspoint.com. S&C Price Sheet 150 5 Standard Conditions of Sale I Immediate Purchasers in the United States POLICIES RELATING TO SALES CHANGES TO PRICES AND CONDITIONS OF SALE: Prices and conditions of sale are subject to change without notice. WITNESS OF TEST: Normal production procedures do not provide opportunity for the immediate purchaser to witness routine factory tests on their apparatus. Witness of such tests by the immediate purchaser requires spe- cial processing of the order and usually entails delays in production and additional charges, information on which can be furnished on request. RETURNS: Products may not be returned by the imme- diate purchaser without first securing authorization and a return goods authorization number. Where S&C autho- rizes the immediate purchaser to return unused, recently received products, charges will be made to cover outgo- ing transportation paid by S&C plus cost of restocking, repackaging, reinspection, repair, or disassembly as applicable. Only products manufactured within the past two years and still of current design will be eligible for return. In general, charges over and above the transpor- tation, will be based on the following schedule: 1. 250/6 of the net selling price for standard catalog products regularly carried in S&C's active warehouse stock and returnable directly to stock without reinspection, repackaging, repair, or modification; 2. 50% of the net selling price for standard catalog products not regularly carried in S&C's active warehouse stock, but which are sufficiently active to warrant being placed in stock and which can be returned directly to stock without reinspection, repackaging, repair, or modification; 3. 75% of the net selling price for standard catalog product not sufficiently active to warrant being placed in stock and which therefore must be unpacked and disassembled; 4. 100% or more of the net selling price for products of a custom nature which must be unpacked and disassembled and from which only certain parts and subassemblies are salvageable. Authorized returns, with the return goods authoriza- tion number identified on the material to be returned, should be shipped, freight prepaid and at the immediate purchaser's risk, to S&C Electric Company, Repair Center. For product returns, contact the local S&C representative for proper return material authorization documentation and instructions. 6 S&C Price Sheet 150 SINGLE PHASE VANTRAN PADMOUNTED TRANSFORMERS ONAN 650C RISE VANPAD I- 125KV-BIL & BELOW B ® 8 N.P. H1 H2 X3 X1 X2 0 0 0 0 i FRONT VIEW - DOORS REMOVED SECTION 16 WACO, TEXAS PAGE 2 60 HZ 7-19-12 C* A SIDE VIEW *DIMENSIONS INCLUDE COOLERS RECOMMENDED MINIMUM PAD SIZE I 3" TRANSFORMER BASE I I I I I I I I BASE DIMENSIONS D CONDUIT F CABLE OPENING 1 ys E TRANSFORMERS CONFORM TO NEMA & ANSI STANDARDS WHERE APPLICABLE. TRANSFORMER TESTS PER ANSI C57.12.90 ADD 10" TO OVERALL HEIGHT FOR BAYONET FUSES. TRANSFORMERS SUPPLIED WITH STANDARD DISTRIBUTION ACCESSORIES PER ANSI C57.12. REFER TO FACTORY FOR SPECIAL FEATURES. DEAD FRONT SAME DIMENSIONS WEIGHTS & DIMENSIONS KVA T.W. A B C 25 900 34 40 36 37% 1000 34 40 40 50 1100 34 40 40 75 1400 34 40 40 100 1500 34 40 40 167 2000 44 40 *44 250 2400 44 40 *51 333 3100 44 40 *58 500 4000 56 49 *66 BASE DIMENSIONS KVA D E F GALLONS 25 33 33 17 60 37% 37 33 17 60 50 37 33 17 70 75 37 33 17 67 100 37 33 17 65 167 39 33 17 105 250 39 33 17 105 333 42 33 17 105 500 42 40 17 180 VANTRAN WACO, TEXAS SECTION 16 PAD MOUNTED TRANSFORMERS - MINERAL OIL FILLED PAGE 3 SINGLE PHASE ONAN 650C RISE 60 HZ 7-19-12 STANDARD ACCESSORIES 1. TAMPERPROOF, REMOVABLE, BOLTED -ON CABINET WITH OPEN BOTTOM, REMOVABLE LIFTOFF DOORS, STAINLESS STEEL HINGES AND THREE POINT LATCHING MECHANISM. DOORS DESIGNED TO PREVENT ACCESS TO HV COMPARTMENT UNTIL LV COMPARTMENT DOOR IS OPEN ED.PROVISIONS FOR PADLOCKING ON LV COMPARTMENT DOOR.CAPTIVE PENTA HEAD COMPARTMENT DOOR LOCKING BOLT PROVIDED. 2. REMOVABLE COVER (TAMPERPROOF) 3. WELDED ON COVER 4. BOLTED ON INSPECTION PLATE 5. LIFTING LUGS (4EA. REQUIRED) 6. DIAGRAMMATIC CORROSION RESISTANT NAMEPLATE 7. STEEL BARRIER BETWEEN HV & LV COMPARTMENTS 8. TWO EACH LV BUSHINGS WITH, NEMA4 HOLE SPADE TERMINALS 9. ONE EACH NEUTRAL BUSHING WITH NEMA 4 HOLE SPADE TERMINAL AND REMOVABLE GROUND STRAP (%" -13 TAP GROUND BOSS) 10. TWO EACH HIGH VOLTAGE BUSHINGS WITH EYEBOLT TERMINALS 11. BOTTOM OF TRANSFORMER UNDERCOATED TO PREVENT CORROSION 12. TANK GROUND BOSSES (%" -13 TAPS) (EACH COMPARTMENT) 13. TRANSFORMER BASE WITH PROVISIONS FOR ROLLING 14. AUTOMATIC PRESSURE RELIEF VALVE 15. DRAIN PLUG 16. FILLER PLUG 17. EXTERNALLY OPERATED NO-LOAD TAPCHANGER 18. PROVISIONS FOR MOUNTING SURGE ARRESTERS 19. PAINT COLOR MUNSELL 7.0 GY 3.29/1.5 BELL GREEN VANTRAN WACO, TEXAS LOW PROFILE PAD MOUNTED TRANSFORMERS - MINERAL OIL FILLED SINGLE PHASE OISC 650C RISE 60 HZ T) 4 o 113 9"R J ll 5" HIA 11 X2.I •• REMOVED © O RECOMMENDED MINIMUM PAD SIZE 3" TRANSFORMER BASE ROUTINE TESTS PER ANSI C57.12.90 12" --1 SECTION 16 PAGE 4 7-19-12 KVA T.W. GAL OIL TRANSFORMERS SUPPLIED WITH STANDARD ACCESSORIES PER 15 800 57 ANSI C57.12.25 REFER TO FACTORY FOR 25 825 55 SPECIAL FEATURES 37'/2 900 53 50 1000 51 75 1100 49 VANTRAN WACO, TEXAS SECTION 16 LOW PROFILE PAD MOUNTED TRANSFORMERS - MINERAL OIL FILLED PAGE 5 SINGLE PHASE OISC 650C RISE 60 HZ 7-19-12 15 KV & BELOW STANDARD ACCESSORIES I. TWO EACH DEAD FRONT LOADBREAK SAFETY PLUG HIGH VOLTAGE BUSHINGS OR BUSHING WELLS AS REQUIRED 2. THREE EACH 5/8" EPDXY STUD LOW VOLTAGE BUSHINGS (EXTERNALLY MOUNTED) 3. LOW VOLTAGE NEUTRAL STUD GROUNDED TO TANK WITH DETACHABLE STRAP 4. DIAGRAMMATIC CORROSION RESISTANT NAMEPLATE 5. TANK GROUND BOSS (%" -13 TAP) 6. HINGED FRONT COVER SUITABLE FOR REMOVING IN OPEN POSITION 7. BOTTOM OPEN FOR CONDUIT CABLE ENTRANCE 8. REMOVABLE FRONT SILL 9. LIFTING LUGS REMOVABLE 10. FRONT COMPARTMENT LIFTING HANDLE (RECESSED) PROVISION FOR PADLOCKING (7/16" PADLOCK) 11. %" DRAIN PLUG 12. ONE INCH FILLING PLUG 13. PAINT COLOR MUNSELL 7.0 GY 3.29/1.5 BELL GREEN 14. BOTTOM OF TRANSFORMER UNDERCOATED TO PREVENT CORROSION 15. 2" ACCESS HOLE WITH COVER IN SIDE OF SILL 16. AUTOMATIC PRESSURE RELIEF VALVE 17. LOADBREAK EXTERNALLY REMOVABLE BAYONET FUSE ASSEMBLY WITH INTERNAL FAULT SENSING ISOLATION LINK 18. HIGH VOLTAGE FUSE OIL DRIP SHIELD 19. HIGH VOLTAGE PARKING STAND VANTRAN WACO, TEXAS LOW PROFILE PAD MOUNTED TRANSFORMERS - MINERAL OIL FILLED SINGLE PHASE OISC 650C RISE 60 HZ T' 11" FRONT VIEW WITH LID REMOVED RECOMMENDED MINIMUM PAD SIZE i------------------- 3" TRANSFORMER BASE i i ROUTINE TESTS PER ANSI C57.12.90 SECTION 16 PAGE 6 7-19-12 KVA T.W. GAL OIL A B C D TRANSFORMERS SUPPLIED WITH 100 1400 65 20 36 34 31'/2 STANDARD ACCESSORIES PER 167 1700 84 25 41 36 33'/z ANSI C57.12.25 REFER TO FACTORY FOR SPECIAL FEATURES VANTRAN WACO, TEXAS SECTION 16 LOW PROFILE PAD MOUNTED TRANSFORMERS - MINERAL OIL FILLED PAGE 7 SINGLE PHASE OISC 650C RISE 60 HZ 7-19-12 15 KV & BELOW STANDARD ACCESSORIES 1. TWO EACH DEAD FRONT LOADBREAK SAFETY PLUG HIGH VOLTAGE BUSHINGS OR BUSHING WELLS AS REQUIRED 2. THREE EACH 1" EPDXY STUD LOW VOLTAGE BUSHINGS (EXTERNALLY MOUNTED) 3. LOW VOLTAGE NEUTRAL STUD GROUNDED TO TANK WITH DETACHABLE STRAP 4. DIAGRAMMATIC CORROSION RESISTANT NAMEPLATE 5. TANK GROUND BOSS ('/z" -13 TAP) 6. HINGED FRONT COVER SUITABLE FOR REMOVING IN OPEN POSITION 7. BOTTOM OPEN FOR CONDUIT CABLE ENTRANCE 8. REMOVABLE FRONT SILL 9. LIFTING LUGS REMOVABLE 10. FRONT COMPARTMENT LIFTING HANDLE (RECESSED) PROVISION FOR PADLOCKING (7/16" PADLOCK) 11. %" DRAIN PLUG 12. ONE INCH FILLING PLUG 13. PAINT COLOR MUNSELL 7.0 GY 3.29/1.5 BELL GREEN 14. BOTTOM OF TRANSFORMER UNDERCOATED TO PREVENT CORROSION 15. 2" ACCESS HOLE WITH COVER IN SIDE OF SILL 16. AUTOMATIC PRESSURE RELIEF VALVE 17. LOADBREAK EXTERNALLY REMOVABLE BAYONET FUSE ASSEMBLY WITH INTERNAL FAULT SENSING ISOLATION LINK 18. HIGH VOLTAGE FUSE OIL DRIP SHIELD 19. COOLING FINS (167 KVA ONLY) 20. HIGH VOLTAGE PARKING STAND VANTRAN PADMOUNTED TRANSFORMERS THREE PHASE DISC 650C RISE VANPAD III-125KV-BIL & BELOW B ®8 !------------------------- FRONTVIEW-DOORS REMOVED A WACO, TEXAS 60 HZ SECTION 18 PAGE 2 7-19-12 RECOMMENDED MINIMUM PAD SIZE WEIGHTS & DIMENSIONS ------------ 3" TRANSFORMER BASE KVA T.W. GAL. A B ' 30 1800 110 42 57 I 45 1900 110 42 57 75 2100 120 42 57 I 112% 2400 130 42 57 150 2600 125 42 57 BASE DIMENSIONS D CONDUIT F CABLE OPENING 11/2 �I t-�---- E -mot BASE DIMENSIONS KVA C D E F 30 37 34 50 18 TRANSFORMERS CONFORM TO NEMA & ANSI 45 37 34 50 18 STANDARDS WHERE APPLICABLE. 75 39 36 50 18 112% 41 38 50 18 TRANSFORMER TESTS PER ANSI C57.12.90 150 41 38 50 18 ADD 10" TO OVERALL HEIGHT FOR BAYONET FUSES. TRANSFORMERS SUPPLIED WITH STANDARD DISTRIBUTION ACCESSORIES PER ANSI C57.12.26 REFER TO FACTORY FOR SPECIAL FEATURES. LIVE FRONT SAME DIMENSIONS VANTRAN WACO, TEXAS SECTION 18 PAD MOUNTED TRANSFORMERS - MINERAL OIL FILLED PAGE 3 THREE PHASE OISC 650C RISE 60 HZ 7-19-12 VANPAD III-125KV-BIL $ BELOW STANDARD ACCESSORIES 1. FOUR LIFTING HOOKS 2. PER ASTM D-3487 TYPE II MINERAL OIL FILLED WITH LESS THAN 1 P.P.M. OF P.C.B. AT TIME OF MANUFACTURE 3. JACKING PADS 4. ONE INCH DRAIN VALVE 5. TANK GROUNDING PADS ('/z" -13 TAP) (EACH COMPARTMENT) 6. TRANSFORMER BASE DESIGNED FOR ROLLING 7. THREE LOW VOLTAGE BUSHINGS WITH NEMA 4 HOLE SPADE TERMINALS 8. ONE LV NEUTRAL BUSHING WITH NEMA 4 HOLE SPADE TERMINAL AND EXTERNAL GROUNDING STRAP (IF LOW VOLTAGE IS "Y" OR W/CENTER TAP) 9. NEUTRAL GROUND PAD ('/Z" -13 TAP) 10. DIAGRAMMATIC CORROSION RESISTANT NAMEPLATE 11. TAMPERPROOF, REMOVABLE, BOLTED ON CABINET WITH OPEN BOTTOM. REMOVABLE LIFT OFF DOORS, STAINLESS STEEL HINGES AND THREE POINT LATCHING MECHANISM. DOORS DESIGNED TO PREVENT ACCESS TO HV COMPARTMENT UNTIL LV COMPARTMENT DOOR IS OPENED. PROVISIONS FOR PADLOCKING ON LV COMPARTMENT DOOR. CAPTIVE PENTA HEAD COMPARTMENT DOOR LOCKING BOLT PROVIDED 12. THREE EACH DEAD FRONT HIGH VOLTAGE BUSHING WELLS ARRANGED FOR RADIAL FEED WITH PARKING STANDS 13. FULL LENGTH STEEL BARRIER BETWEEN HIGH VOLTAGE AND LOW VOLTAGE COMPARTMENTS 14. TAMPERPROOF, REMOVABLE COVER FOR ACCESS TO INSPECTION PLATE 15. TANK COVER WELDED ON 16. ONE INCH FILLING PLUG 17. BOLTED ON INSPECTION PLATE 18. AUTOMATIC PRESSURE RELIEF VALVE 19. BOTTOM OF TRANSFORMER UNDERCOATED TO PREVENT CORROSION 20. EXTERNAL NO-LOAD TAPCHANGER 21. PAINT COLOR MUNSELL 7.0 GY 3.29/1.5 BELL GREEN II VANTRAN PADMOUNTED TRANSFORMERS THREE PHASE OISC 650C RISE VANPAD III - 125KV-BIL & BELOW B 128 O H1 H2 11 '' H3 X1 X3 ® a ------------------------- FRONTVIEW -DOORS REMOVED RECOMMENDED MINIMUM PAD SIZE .------------- 3" TRANSFORMER BASE I I I I I I I I I BASE DIMENSIONS D CONDUIT F CABLE OPENING �---= E TRANSFORMERS CONFORM TO NEMA & ANSI STANDARDS WHERE APPLICABLE. TRANSFORMER TESTS PER ANSI C57.12.90 ADD 10" TO OVERALL HEIGHT FOR BAYONET FUSES. TRANSFORMERS SUPPLIED WITH STANDARD DISTRIBUTION ACCESSORIES PER ANSI C57.12.26 REFER TO FACTORY FOR SPECIAL FEATURES. SECTION 18 WACO, TEXAS PAGE 4 60 HZ 7-19-12 C* SIDE VIEW *DIMENSIONS INCLUDE COOLERS WEIGHTS & DIMENSIONS KVA T.W. GAL. A B 225 3700 185 52 64 300 4100 200 52 64 500 5100 240 56 64 750 6700 310 65 65 1000 8200 400 72 67 1500 10000 430 72 73 2000 13000 480 72 82 2500 15000 590 78 82 3000 17000 610 78 82 3750 20000 750 82 92 5000 24000 840 82 98 ABOVE 5000 KVA REFER TO FACTORY BASE DIMENSIONS KVA C D E F 225 *50 38 55 18 300 *50 40 55 18 500 *60 44 55 20 750 *60 46 56 20 1000 *66 48 58 20 1500 *72 48 64 20 2000 *74 50 70 20 2500 *83 54 70 22 3000 *91 56 70 22 3750 *91 60 80 24 5000 *99 62 86 24 ABOVE 5000 KVA REFER TO FACTORY LIVE FRONT SAME DIMENSIONS VANTRAN WACO, TEXAS SECTION 18 PAD MOUNTED TRANSFORMERS - MINERAL OIL FILLED PAGE 5 THREE PHASE OISC 650C RISE 60 HZ 7-19-12 VANPAD III-125KV-BIL & BELOW STANDARD ACCESSORIES 1. FOUR LIFTING HOOKS 2. PER ASTM D-3487 TYPE II MINERAL OIL FILLED WITH LESS THAN 1 P.P.M. OF P.C.B. AT TIME OF MANUFACTURE 3. JACKING PADS 4. ONE INCH DRAIN VALVE 5. TANK GROUNDING PADS ('/z" -13 TAP) (EACH COMPARTMENT) 6. THREE LOW VOLTAGE BUSHINGS WITH NEMA 4 OR 6 HOLE SPADE TERMINALS 7. ONE LV NEUTRAL BUSHING WITH NEMA 4 OR 6 HOLE SPADE TERMINAL AND EXTERNAL GROUNDING STRAP (IF LOW VOLTAGE IS "Y" OR W/CENTER TAP) 8. NEUTRAL GROUND PAD (%" -13 TAP) 9. DIAGRAMMATIC CORROSION RESISTANT NAMEPLATE 10. FULL LENGTH STEEL BARRIER BETWEEN HIGH VOLTAGE AND LOW VOLTAGE COMPARTMENTS 11. THREE EACH DEAD FRONT HIGH VOLTAGE BUSHING WELLS ARRANGED FOR RADIAL FEED WITH PARKING STANDS 12. TAMPERPROOF, REMOVABLE, BOLTED ON CABINET WITH OPEN BOTTOM. REMOVABLE LIFT OFF DOORS, STAINLESS STEEL HINGES AND THREE POINT LATCHING MECHANISM. DOORS DESIGNED TO PREVENT ACCESS TO HV COMPARTMENT UNTIL LV COMPARTMENT DOOR IS OPENED. PROVISIONS FOR PADLOCKING ON LV COMPARTMENT DOOR. CAPTIVE PENTA HEAD COMPARTMENT DOOR LOCKING BOLT PROVIDED 13. TAMPERPROOF, REMOVABLE COVER FOR ACCESS TO INSPECTION PLATE 14. TRANSFORMER BASE DESIGNED FOR ROLLING 15. TANK COVER WELDED ON 16. ONE INCH FILLING PLUG 17. BOLTED ON INSPECTION UNDER COVER PLATE 18. AUTOMATIC PRESSURE RELIEF DEVICE 19. RADIATORS (FLEXOPLATE) (AS REQUIRED) 20. EXTERNAL NO-LOAD TAPCHANGER PADLOCKABLE IN ANY POSITION 21. OIL LEVEL GAUGE (750 KVA AND LARGER) 22. PROVISIONS FOR DIAL TYPE THERMOMETER (750 KVA AND LARGER) 23. PROVISIONS FOR PRESSURE VACUUM GAUGE (750 KVA AND LARGER) 24. BOTTOM OF TRANSFORMER UNDERCOATED TO PREVENT CORROSION 25. PAINT COLOR MUNSELL 7.0 GY 3.29/1.5 BELL GREEN VANTRAN PADMOUNTED TRANSFORMERS THREE PHASE OISC 650C RISE VANPAD III—125KV-BIL & BELOW B o ®8 0 pu up O mu um muou ® a A --------------------------; FRONT VIEW - DOORS REMOVED RECOMMENDED MINIMUM PAD SIZE I 3" TRANSFORMER BASE I I I I I I I I BASE DIMENSIONS D CONDUIT F CABLE l OPENING 1yz E TRANSFORMERS CONFORM TO NEMA & ANSI STANDARDS WHERE APPLICABLE. TRANSFORMER TESTS PER ANSI C57.12.90 ADD 10" TO OVERALL HEIGHT FOR BAYONET FUSES. TRANSFORMERS SUPPLIED WITH STANDARD DISTRIBUTION ACCESSORIES PER ANSI C57.12.26 REFER TO FACTORY FOR SPECIAL FEATURES. LIVE FRONT SAME DIMENSIONS SECTION 18 WACO, TEXAS PAGE 6 60 HZ 7-19-12 C* SIDE VIEWH *DIMENSIONS INCLUDE COOLERS WEIGHTS & DIMENSIONS KVA T.W. GAL. A B 30 2500 165 52 63 45 2600 165 52 63 75 2800 180 52 63 112% 3100 195 52 63 150 3300 190 52 63 225 4300 240 56 67 300 4600 235 56 67 500 6000 300 62 69 750 7500 370 65 74 1000 9100 450 72 74 1500 10500 435 72 74 2000 13000 480 72 82 2500 15000 590 78 82 3000 17000 610 78 82 3750 20000 750 82 92 5000 24000 840 82 98 ABOVE 5000 KVA REFER TO FACTORY BASE DIMENSIONS KVA C D E F 30 37 34 56 18 45 37 34 56 18 75 39 36 56 18 112% 41 38 56 18 150 41 38 56 18 225 *50 40 58 18 300 *50 40 58 18 500 *58 44 60 20 750 *60 46 65 20 1000 *66 48 65 20 1500 *72 48 65 20 2000 *74 50 70 20 2500 *83 54 70 22 3000 *91 56 70 22 3750 *91 60 80 24 5000 *99 62 86 24 ABOVE 5000 KVA REFER TO FACTORY VANTRAN WACO, TEXAS SECTION 18 PAD MOUNTED TRANSFORMERS - MINERAL OIL FILLED PAGE 7 THREE PHASE DISC 650C RISE 60 HZ 7-19-12 VANPAD III-125KV-BIL & BELOW STANDARD ACCESSORIES 1. FOUR LIFTING HOOKS 2. PER ASTM D-3487 TYPE II MINERAL OIL FILLED WITH LESS THAN 1 P.P.M. OF P.C.B. AT TIME OF MANUFACTURE 3. JACKING PADS 4. ONE INCH DRAIN VALVE 5. TANK GROUNDING PADS ('/? -13 TAP) (EACH COMPARTMENT) 6. THREE LOW VOLTAGE BUSHINGS WITH NEMA 4 OR 6 HOLE SPADE TERMINALS 7. ONE LV NEUTRAL BUSHING WITH NEMA 4 OR 6 HOLE SPADE TERMINAL AND EXTERNAL GROUNDING STRAP (IF LOW VOLTAGE IS "Y" OR W/CENTER TAP) 8. NEUTRAL GROUND PAD (%" -13 TAP) 9. DIAGRAMMATIC CORROSION RESISTANT NAMEPLATE 10. FULL LENGTH STEEL BARRIER BETWEEN HIGH VOLTAGE AND LOW VOLTAGE COMPARTMENTS 11. SIX EACH DEAD FRONT HIGH VOLTAGE BUSHING WELLS ARRANGED FOR LOOP FEED WITH PARKING STANDS 12. TAMPERPROOF, REMOVABLE, BOLTED ON CABINET WITH OPEN BOTTOM. REMOVABLE LIFT OFF DOORS, STAINLESS STEEL HINGES AND THREE POINT LATCHING MECHANISM. DOORS DESIGNED TO PREVENT ACCESS TO HV COMPARTMENT UNTIL LV COMPARTMENT DOOR IS OPENED. PROVISIONS FOR PADLOCKING ON LV COMPARTMENT DOOR. CAPTIVE PENTA HEAD COMPARTMENT DOOR LOCKING BOLT PROVIDED 13. TAMPERPROOF, REMOVABLE COVER FOR ACCESS TO INSPECTION PLATE 14. TRANSFORMER BASE DESIGNED FOR ROLLING 15. TANK COVER WELDED ON 16. ONE INCH FILLING PLUG 17. BOLTED ON INSPECTION UNDER COVER PLATE 18. AUTOMATIC PRESSURE RELIEF DEVICE 19. RADIATORS (FLEXOPLATE) (AS REQUIRED) 20. EXTERNAL NO-LOAD TAPCHANGER PADLOCKABLE IN ANY POSITION 21. OIL LEVEL GAUGE (750 KVA AND LARGER) 22. PROVISIONS FOR DIAL TYPE THERMOMETER (750 KVA AND LARGER) 23. PROVISIONS FOR PRESSURE VACUUM GAUGE (750 KVA AND LARGER) 24. BOTTOM OF TRANSFORMER UNDERCOATED TO PREVENT CORROSION 25. PAINT COLOR MUNSELL 7.0 GY 3.29/1.5 BELL GREEN VJWn ran TRANSFORMERS Single Phase & Three Phase Padmount Liquid Filled Compartmental Transformer KVA: Up to 10,000 KVA Primary Voltage: Up to 34.5 KV BIL: Up to 200 KV Operation and Maintenance Manual April 2021 www.VanTran.com Page 11 Contents 1. Safety Information: ......................................................................................................................................... 5 2. General Information: 6 ...................................................................................................................................... 2.1 Acceptance & Inspection upon Receipt................................................................................................... 6 2.2 Proper Handling & Unloading.................................................................................................................. 6 2.2.1 Moving Transformers Shipped on Pallets......................................................................................... 6 2.2.2 Lifting Transformers by Crane or Hoist............................................................................................. 7 2.2.3 Skidding/Rolling Transformers.......................................................................................................... 7 2.2.4 Using Jacks to Move Transformers................................................................................................... 7 3. Storage: ........................................................................................................................................................... 7 3.1 Storage for 90 Days or Less...................................................................................................................... 7 3.2 Storage for More Than 90 Days............................................................................................................... 8 3.3 Removable Radiators............................................................................................................................... 8 4. Installation: 8 4.1 Pre -service Inspection.............................................................................................................................. 8 4.2 Location Consideration............................................................................................................................ 9 4.3 Mounting the Transformer...................................................................................................................... 9 4.4 External Connection................................................................................................................................. 9 4.4.1 Ground Connection......................................................................................................................... 10 4.4.2 High Voltage Connection................................................................................................................ 10 4.4.3 Live Front Transformer Connections.............................................................................................. 10 4.4.4 Dead Front Transformer Connections............................................................................................11 4.4.5 Low Voltage Connection................................................................................................................. 11 5. Accessories: 11 5.1 Pressure Relief Valve..............................................................................................................................11 5.2 Fill Plug/Filler Valve (Fluid) with Schrader Valve (Nitrogen)..................................................................12 5.3 Drain Valve & Fluid Sampler................................................................................................................... 12 5.4 Liquid Level Gauge................................................................................................................................. 13 5.5 Temperature Gauge............................................................................................................................... 14 5.6 Pressure Vacuum Gauge........................................................................................................................ 15 5.7 Fault Pressure Relief Device (FPRD)....................................................................................................... 16 5.8 Rapid Pressure Rise Relay (RPRR) with Seal -in Relay............................................................................. 17 5.9 Winding Temperature Monitor.............................................................................................................. 18 5.10 Forced Air Cooling Fans...................................................................................................................... 19 Operation and Maintenance Manual April 2021 www.VanTran.com Page 12 5.11 Radiators.............................................................................................................................................20 5.12 Radiator Shut-off Valve...................................................................................................................... 21 5.13 Current Transformers, Meter Sockets, & Watt -Hour Meters............................................................ 22 6. Switching & Protection Devices: ................................................................................................................... 23 6.1 Tap Changers.......................................................................................................................................... 23 6.2 Load Break Oil -Immersed Rotary Switches (LBOR)............................................................................... 24 6.2.1 Two -Position LBOR Switch.............................................................................................................. 24 6.2.2 Four -Position LBOR Switch "Sectionalizing Switch"....................................................................... 25 6.3 Dual Voltage Switch............................................................................................................................... 26 6.4 Delta -Wye Switch................................................................................................................................... 27 6.5 Surge Arresters....................................................................................................................................... 27 6.5.1 Dead Front Surge Arresters............................................................................................................ 28 6.5.2 Live Front Surge Arresters.............................................................................................................. 28 6.6 Fusing..................................................................................................................................................... 29 6.6.1 Bay-O-Net Fuses.............................................................................................................................. 29 6.6.2 Dry -Well Canister Fuses.................................................................................................................. 31 6.7 Space Heaters......................................................................................................................................... 32 6.8 Nitrogen Blanket.................................................................................................................................... 33 6.9 Radiator Functional Operation............................................................................................................... 33 6.10 Spill Containment Pan........................................................................................................................ 34 7. Dielectric Fluid: ............................................................................................................................................. 34 7.1 Type II Mineral Oil.................................................................................................................................. 34 7.2 High Fire Point Dielectric Fluid............................................................................................................... 34 8. Factory Testing: ............................................................................................................................................. 35 8.1 Routine Tests.......................................................................................................................................... 35 8.1.1 Ratio................................................................................................................................................ 35 8.1.2 Winding Resistance......................................................................................................................... 35 8.1.3 No Load & Excitation Current......................................................................................................... 35 8.1.4 Load Losses & Impedance Voltage................................................................................................. 35 8.1.5 Dielectric Strength.......................................................................................................................... 36 8.2 Special/Design Tests............................................................................................................................... 36 8.2.1 Insulation Power Factor (Tan S)...................................................................................................... 36 8.2.2 Insulation Resistance...................................................................................................................... 36 8.2.3 Temperature Rise............................................................................................................................ 36 Operation and Maintenance Manual April 2021 www.VanTran.com Page 13 8.2.4 Lightning Impulse............................................................................................................................ 36 8.2.5 Audible Sound Level........................................................................................................................ 37 9. Maintenance: ................................................................................................................................................ 37 9.1 Spare Parts............................................................................................................................................. 37 9.2 Routine Inspection................................................................................................................................. 37 9.3 Dielectric Fluid Sampling........................................................................................................................ 38 Operation and Maintenance Manual April 2021 www.VanTran.com Page 14 1. Safety Information: The instructions in this manual are not intended as a substitute for proper training or adequate experience in the safe operation of the equipment described. Only competent technicians who are familiar with this equipment should install, operate, and service it. These instructions cannot cover all details or variations in the equipment, procedures, or process described, nor to provide directions for meeting every possible contingency during installation, operation, or maintenance. The following conventions are used to indicate and classify precautions and on product safety labeling. Failure to observe precautions could result in injury to people or damage to property. HAZARD Statement definition: This symbol/pictorial is used to identify an ELECTRICAL SHOCK or ELECTROCUTION hazard, all installation, maintenance, or repair should be performed by trained, experienced, and qualified personnel only. This is the safety alert symbol. It is used to alert you to potential personal injury hazards. Obey all safety messages that follow this symbol to avoid possible injury or death. Safety Instructions AWARNING: A potential risk exists if operating instructions are not followed which could result in severe personal injury or death, and equipment damage. WARNING: The contents of this manual should be carefully read and understood before attempting any test, repair, installation, removal, or operation of this equipment. Severe personal injury and equipment damage can occur from the result of improper handling, maintenance, or operation of this equipment. WARNING: Transformers should never be opened, serviced, or otherwise tampered with while they are 1 energized, ungrounded or connected to the system. Removing or tampering with any covers, doors, bushings, or seals of an energized transformer may result in death, severe personal injury, and equipment damage. WARNING: This equipment in not intended to protect human life. Follow all locally approved procedures and safety practices when installing or operating this equipment. Failure to comply with these warnings may result in death, severe personal injury, and equipment damage. WARNING: This equipment requires routine inspection and maintenance. Failure to properly inspect and maintain this equipment could result in unsafe conditions in and around this unit, which could lead to death, severe personal injury, and equipment damage. Operation and Maintenance Manual April 2021 www.VanTran.com Page 15 2. General Information: 2.1 Acceptance & Inspection upon Receipt All VanTran transformers are thoroughly tested and rigorously inspected before shipment from the factory to ensure the highest quality. Upon receipt: 1. Thoroughly check all materials against the bill of lading. 2. Locate accessory parts that may have been shipped separately. 3. Carefully check the unit and associated components for any signs of damage caused during shipment. A damaged crate or pallet can be an indication of rough handling; if this condition is found, make a close inspection of the base and radiators (if equipped) and verify no damage has occurred. 4. In the event that significant damage to the unit or any associated equipment is noticed, rejection of the shipment should be made before it is unloaded. In the event of minor damages (nicks, scratches, etc.), carefully inspect the unit and note all damage on the carriers copy of the freight receipt. Note: VanTran ships most units FOB Point of Manufacture, and it is the customer's responsibility to file a claim against the carrier. Note: If acceptance of the transformer is made and damage to the unit is noticed at a later time, it is extremely difficult to file a claim against the carrier. 2.2 Proper Handling & Unloading WARNING: Heavy Equipment. Improper handling can cause severe injury, death, or damage to .: transformer. Before moving the transformer, read the handling instructions provided in this manual. CAUTION: The transformer weight is shown on the transformer nameplate. Most of the weight is in the ! tank that holds the core and coil assembly and the insulating liquid. Do not use hoists, cranes, jacks, or forklifts with load capacity less than the transformer weight. WARNING: Transformer accessories such as bushings, leads, arrestors, etc. should never be used as a handle to move the transformer. 2.2..1 Moving Transformers Shipped on Pallets Transformers shipped on pallets may be lifted or moved by forklift trucks of proper capacity. When using a forklift, lift with the transformer tank closest to the mast of the forklift since most of the transformer weight is in the tank. Pallet mounted equipment may also be moved by crane or hoist. Operation and Maintenance Manual April 2021 www.VanTran.com Page 16 2.2.2 Lifting Transformers by Crane or Hoist Lifting lugs, welded to all transformer tanks, are designed and provided for lifting the complete unit as shipped. VanTran recommends lifting by these lugs as the primary means of movement. Care should be taken to ensure straps, chains, and cables used to lift the units are inspected prior to use. All straps, chains, cables, and lifting devices should be in good working order with sufficient capacity to perform the job intended. Straps, chains, and cables should never be looped from one lug to another to form a continuous loop around the unit or even on one side of the unit. Each chain, strap, or cable should be run only to one lifting lug at a time to prevent loss of control of the unit in the event of a failure with one of the lifting devices. Cable pull angles should never exceed 300 from vertical or damage to the lifting lugs may occur. Spreader beams/bars should be used to hold the cables apart and as close to vertical as possible to minimize the forces on the lifting lugs and lifting devices. 2.2.3 Skidding/Rolling Transformers VanTran transformers are designed to be rolled or skidded into place where accessibility to a crane or other overhead lifting device is limited or not available. If the unit must be rolled, ensure that the area is level, free from obstructions and debris, and is of sufficient strength and thickness to support the load. When rollers are used, use as many as necessary to distribute the weight uniformly. 2.2.4 Using Jacks to Move Transformers Place jacks under the tank base on the open ends of the transformer tank. DO NOT place jacks under radiators, valves, cabinets, or sheet metal components. ALWAYS use at least two jacks per side and raise evenly to prevent warping of the base. 3. Storage: 3.1 Storage for 90 Days or Less All VanTran units have been thoroughly dried at the factory and shipped with oil at the correct level. Transformers should always be stored with oil in place to prevent possible contamination and absorption of moisture. Transformers should be stored in a dry location with no rapid or radical temperature changes. If possible, the transformer should be stored in its permanent location on the foundation which has been prepared for it. If the permanent foundation is not available, it should be stored in its correct upright position on a level foundation capable of withstanding the weight of the unit without deformation. CAUTION: Never store a transformer solely under the jacking steps, on jacks, or on temporary blocking. Never store the transformer on rollers. Never store the transformer in or near standing water or in areas with high moisture, salt levels, or corrosive gases in the air. Operation and Maintenance Manual April 2021 www.VanTran.com Page 17 3.2 Storage for More Than 90 Days All VanTran transformers are shipped with a 2-psi dry nitrogen blanket. During long term storage, it is recommended that this nitrogen blanket be maintained by the addition of a bottle of dry nitrogen, through a regulator, to the transformer tank. If the unit is equipped with anti -condensation heaters in the control cabinets, they should be energized and checked for proper operation. Units with any enclosed air -filled spaces, such as control cabinets and Air Terminal Chambers, should be supplied with an appropriate amount of moisture absorbing desiccant packets. Desiccant should be monitored and replaced in regular maintenance intervals as moisture levels in the storage area dictates. 3.3 Removable Radiators VanTran ships all transformers, when possible, completely assembled and ready for use. In the event that removable radiators are shipped separately to accommodate shipping or space requirements, radiator openings are shipped with temporary protective caps. Ensure these protective caps are tightly sealed before storage. CAUTION: Radiator assemblies should never be stored directly on the ground or in areas in which water could collect near sealed openings. 4. Installation: 4.1 Pre -service Inspection ELECTRICAL SHOCK: Never attempt to change connections on an energized transformer. All installation, maintenance, or repair should be performed by trained, experienced, and qualified personnel only. New transformers, or transformers which are being activated after a period of storage, should be thoroughly inspected before being connected to the power distribution system to identify damage which may have occurred during storage. 1. The transformer exterior should be inspected for nicks, dents, and scratches. Repair damage to weather - resistant finishes promptly. 2. The tank cover and manhole/hand hole cover seals and all gaskets or seals at bushings, gauges, fuses, operating devices, etc., should be inspected for evidence of insulating liquid seepage. Repair leaking or improperly tightened gaskets and seals before the transformer is placed in service. 3. The liquid level inside the tank must be checked (read directly form gauge on transformers equipped with liquid level gauge). 4. Basic electrical tests should be conducted before energizing a transformer which was stored for a period of 90 days or more. Tests include DC insulation Test and Transformer Turns Ratio (TTR). The results of these tests should be verified with the original factory test results to assure they are still within acceptable limits. Operation and Maintenance Manual April 2021 www.VanTran.com Page 18 4.2 Location Consideration The unit should not be placed within 36 inches of any obstructions and ample room should be provided for the removal of cabinets, covers, and inspection hatches. Ample room should be available to perform periodic maintenance inspections and perform repairs as needed. Proper ventilation should be considered to prevent overheating of the unit. For outdoor installations, proper placement of the unit should be away from walls, fences, vegetation, or any other structures that would restrict air movement around the unit. Special precautions should be taken for units installed indoors. Care should be taken to ensure adequate ventilation is provided. Auto -closing vents should be permanently fixed in the open position to prevent unintended closure and accidental overheating of the unit. Fans, blowers, or other means of positive air movement in the space is strongly encouraged to prevent overheating. Indoor Units Recommendation: 1. The size of vents in an enclosed space should be at least 20 ft2 of inlet and 20 ft2 of outlet area per 1000 kVA of unit capacity. 2. High Fire Point Insulating Liquid. 3. Cover Mounted Pressure relief device (PRD) also referred to as Explosion Relief device. CAUTION: Check with local authorities in the intended installation area to verify compliance of any and .� all applicable laws. 4.3 Mounting the Transformer The transformer must be placed on a concrete pad or steel deck of sufficient strength to support the full weight of the unit. The location must be flat and level and prepared to prevent the transformer form tilting beyond two degrees from horizontal. WARNING: Fire Hazard. Non -level installation of transformer can result in fire and cause severe personal injury or death. Prepare transformer installation site such that transformer does not tilt more than two (2.0) degrees from horizontal while the transformer is in service at the site. To maintain full cabinet security, the transformer tank and cabinet base have provisions for installing cleats to secure transformer to pad. If gaps still exist between the cabinet and pad after cleating the cabinet, the installation will not provide the security needed to prevent tampering by the public. Add a permanent mortar seal to fill the gaps. 4.4 External Connection ELECTRICAL SHOCK: Hazardous voltage can cause severe injury, death, or damage to equipment. Ground transformer following industry -accepted safe grounding practices before making other electrical connections. De -energize power distribution wires that will be connected to transformer. Verify that wires are de -energized at the transformer before connecting to transformer. Operation and Maintenance Manual April 2021 www.VanTran.com Page 19 ELECTRICAL SHOCK: Live front parts should such as cables, bushings and other components must be thoroughly tightened and periodically checked to prevent arcing and overheating. Clean bushings and terminals before making Connections. Remove dirt, grease, or foreign material. Contamination can cause failure of the bushings. Cables connected to the transformer terminals are to have sufficient flex to allow normal pad movement due to ground freeze/thaw and settling. Insufficient cable flex may cause premature failure of the bushings. 4.4.1 Ground Connection The transformer tank must be connected to a permanent, low -resistance ground. If the tank is not solidly grounded and the transformer is connected to the power distribution system, then the tank should be regarded as energized. An energized tank is extremely dangerous. Contact with an energized tank can shock, burn, or cause death. VanTran transformers are equipped with at least two ground pads (Fig. 1) or two ground bosses (Fig. 2) depending on transformers size. One is located on the primary side, and the other is located on the secondary side. Fig. Fig. 4.4.2 High Voltage Connection Diagrams and information supplied on the nameplate must be followed for making connection. There are two types of typical high voltage connections. 4.4.3 Live Front Transformer Connections Externally/internally clamped porcelain bushing are normally provided for high voltage connection to Padmount transformers, supplied with eyebolt or spade terminals that are suitable for copper and aluminum conductors. Operation and Maintenance Manual April 2021 www.VanTran.com Page 110 4.4.4 Dead Front Transformer Connections Bushing wells or one-piece bushings are normally provided for high voltage connection to Padmount transformers, suitable for elbow connections. 4.4.5 Low Voltage Connection Spade terminals ranging from two holes to twenty holes are typically provided for low voltage connection to Padmount transformers. 5. Accessories: 5.1 Pressure Relief Valve Automatic Pressure relief valve (Fig. 3) is standard on all VanTran transformers and is intended to slowly release pressure to prevent rupture of the transformer tank. These valves are factory adjusted to vent at 5 ±2 PSI. Normal operation and atmospheric temperature fluctuations cause the oil and components in the tank to naturally expand and contract causing the gas filled head space inside the tank to fluctuate in pressure. CAUTION: Before performing any kind of service that may include, but is not limited to, opening the t> tank or inspection cover, removal of fuses, removal of bushings, opening drain or fill valves, or any other similar operation, the pressure inside the tank must be safely vented manually. CAUTION: Do not open the transformer in the presence of rain, fog, snow, or if there is condensation 1 on the exterior components of the unit or when the outside air temperature is higher than the temperature of the unit. Even small amounts of moisture that are allowed to enter the transformer tank can decrease the dielectric strength of the insulating fluid and compromise the integrity of the unit. 145. To manually vent the tank, pull the ring supplied on the valve (Fig. 3) until all pressure or vacuum is relieved. Operation and Maintenance Manual April 2021 www.VanTran.com Page 111 5.2 Fill Plug/Filler Valve (Fluid) with Schrader Valve (Nitrogen) Fill Plug with Schrader Valve (Fig. 4A) or Filler Valve with Schrader Valve (Fig. 413) is provided to facilitate addition of dielectric fluid and Nitrogen to the tank. Note: The transformer departs factory with 2-3 PSI of positive nitrogen pressure (blanket) at ambient temperature above the dielectric fluid column. 5.3 Drain Valve & Fluid Sampler The Drain Valve and Fluid Sampler (Fig. 5) is provided to facilitate sampling of the dielectric fluid for testing and other purposes. The valve is also equipped with a plug ranging from %" to 2" to provide means of draining the dielectric fluid. Sampling is usually performed on the side of the valve without the need to remove the end plug. 0 Operation and Maintenance Manual April 2021 www.VanTran.com Page 112 5.4 Liquid Level Gauge A liquid level gauge (Fig. 6) is supplied to indicate the amount of dielectric fluid in the transformer tank. The gauge consists of a float arm inside the tank magnetically coupled to the indicator needle inside the gauge. The magnetic coupling maintains a liquid tight separation between the interior oil and the outside to minimize potential leaks. NI *414 25 C LEVEL W VanTran utilizes several different brands and models of liquid level gauges depending on the application. Transformers can be supplied with a standard gauge or more sophisticated models with either one or two SPDT (Single Pole Double Throw) alarm contacts to facilitate external monitoring. Liquid Levels may vary under normal operation according to temperature and pressure. The 250 C mark is only a reference fluid level at 25' C. Note: For wiring and other information, please refer to the schematics included in the submittal drawings. Operation and Maintenance Manual April 2021 www.VanTran.com Page 113 5.5 Temperature Gauge The temperature gauge (Fig. 7) is supplied to indicate the dielectric fluid temperature in degrees centigrade at the top of the oil column. The gauge consists of two needles (one white and one red). The white needle is the current oil temperature of the unit, while the red needle is a resettable maximum indicator. As the temperature of the oil rises, the white needle pushes the red needle higher with it. If the temperature of the oil declines the white needle follows and goes down with temperature while the red needle remains at the highest temperature reached and acts as a recorder to indicate the highest temperature achieved by the unit. The red needle (maximum indicator) can be reset by turning the knob on the front of the gauge face. The temperature gauge consists of a long thermocouple that extends into the tank inside a protective thermocouple well. The isolation between the thermocouple and the dielectric fluid facilities the removal and replacement of the gauge without draining down the dielectric fluid. 9 a b 0 0 0 0 0 O p Fig. The temperature gauge can be equipped with either one or two SPDT alarm contacts for remote monitoring or fan control. These alarm contacts are factory set but can be adjusted if desired. To adjust the contacts, remove the face of the gauge. Look toward the center of the gauge for a small Allen head set screw. Loosen this set screw and manually move the contacts (red indicators toward the outer edge of the dial) to the desired temperature settings. Gently retighten the set screw and replace gauge face. Note: For wiring and other information, please refer to the schematics included in the submittal drawings. Operation and Maintenance Manual April 2021 www.VanTran.com Page 114 5.6 Pressure Vacuum Gauge The pressure vacuum gauge (Fig. 8) indicates whether the head space pressure inside the tank is positive, negative, or neutral. The pressure inside the tank will vary depending on the load of the unit, temperature of the oil and ambient temperature outside. As the oil temperature rises, the pressure inside the tank also rises. As the temperature falls, the pressure falls. It is common for a transformer to have either a positive pressure or a negative pressure. Do not be alarmed by a consistent negative pressure (for example, if it is winter in Wisconsin, it will likely be negative for the duration of the season). However, if the gauge consistently reads zero and does not appear to be changing with environmental or load conditions, this may be an indication of a leak and may need attention. Visually inspect the unit for any signs of a leak or damaged seal. r 5 N 10 10 VAC PRESS PSIG PSIG 0 The pressure/vacuum gauge can also be equipped with SPDT alarm contacts (by adding a separate pressure alarm switch) for remote monitoring of positive and negative pressures. When requested, the pressure/vacuum gauge can also be equipped with a bleeder or regulator; when used in conjunction with an external nitrogen supply, positive pressure can be maintained inside the tank (2.5 to 3.0 PSI) The regulator is also equipped with a fitting and valve to take gas samples. Operation and Maintenance Manual April 2021 www.VanTran.com Page 115 5.7 Fault Pressure Relief Device (FPRD) Also commonly referred to as an Explosion Relief Device (Fig. 9), this device facilitates the rapid release of gas pressure in the event of an internal fault. This device should not be confused with a standard Automatic Pressure Relief Valve as shown in (Fig. 3), which only releases pressure slowly to account for thermal expansion and contraction. A PRD is cover mounted and equipped with a spring -loaded diaphragm that is factory set to open at a predetermined pressure level (Typically 10 psi). After the tank pressure returns to normal the Diaphragm will close and reseal the unit. The FPRD is equipped with an indicator (yellow button on top) that will protrude vertically after an event until it is reset. The FPRD can also be supplied with SPDT alarm contacts for remote monitoring. Fig. Note: For wiring and other information, please refer to the schematics included in the submittal drawings. Operation and Maintenance Manual April 2021 www.VanTran.com Page 116 5.8 Rapid Pressure Rise Relay (RPRR) with Seal -in Relay This RPRR (Fig. 10) is a device for detection of sudden pressure events based on the rate of pressure rise in the transformer. When a dangerous pressure rise has been detected, the rapid pressure rise relay (RPRR) will change state. This can be used as an alarm or trip signal to minimize the potential of transformer tank damage. s Note: For wiring and other information, please refer to the schematics included in the submittal drawings. Operation and Maintenance Manual April 2021 www.VanTran.com Page 117 5.9 Winding Temperature Monitor VanTran utilizes a digital winding temperature monitor (Fig. 11), this system consists of thermocouples wound into each coil of the transformer in strategic locations to accurately monitor the temperature inside the coil itself. The thermocouple leads are brought out of the tank through a sealed bulkhead type fitting within a protective enclosure. The digital readout and controls are housed in a separate NEMA 4 enclosure typically mounted on side of the tank. INTELLIGENT TRANSFORMER MONITOR aC I FANS CD ST ALARM �7 TRIP CDRELAY4RELAY 5 TO Q Fig. 11 Note: For wiring and other settings information, please refer to the schematics included in the submittal drawings. Operation and Maintenance Manual April 2021 www.VanTran.com Page 118 5.10 Forced Air Cooling Fans Forced Air Cooling Fans (Fig. 12) are provided optionally for units supplied with radiators to increase the KVA capacity of the transformer by up to 25% without overheating or experiencing detrimental effects. The size and number of fans can vary depending on the application. Fans can either be controlled by a top oil temperature gauge with contacts or by a winding temperature indicator. Flag. 12 Note: For wiring and other information, please refer to the schematics included in the submittal drawings. Operation and Maintenance Manual April 2021 www.VanTran.com Page 119 5.11 Radiators Radiators (Fig. 13A) are provided for cooling of the transformer oil. Fig. 13A Operation and Maintenance Manual April 2021 www.VanTran.com Page 120 5.12 Radiator Shut-off Valve Radiator shut off valve (Fig. 1313) is welded to transformer main tank for removal the radiators without oil drainage when the transformer is shipped without radiators. n position Ca To Open/Close the Valve: 1. Remove the two stainless steel 7/16" bolts and washers. 2. Using a W or adjustable wrench, place the wrench on the aluminum cap and rotate counterclockwise. Note the arrow on top of sealing cap should be pointing at the "0" open indicator and "C" close indicator. Recommended torque to tighten the valve is 351bf.ft. DO NOT OVERTIGHTEN stainless steel -bolts -•-°-'- ss steel -washer Jm-Cap operation and Maintenance Manual April 2021 www.VanTran.com Page 121 5.13 Current Transformers, Meter Sockets, & Watt -Hour Meters Padmount transformers may be equipped with Current Transformers (CT) for various reasons such as metering or relaying, they may also be equipped with meters mounted on the transformer. Different types and classes of CT's are used according to the application and the customer's needs. (Fig. 14A) is a bushing mounted CT, (Fig. 1413) is an internally mounted CT, and (Fig. 14C) is a meter socket with Watt -Hour meter that is used in some of the transformers. Fig. 14A Fig. 14C Operation and Maintenance Manual April 2021 www.VanTran.com Page 122 6. Switching & Protection Devices: ELECTRICAL SHOCK: Can cause severe injury, death, or damage to equipment. De -energize transformer from a remote upstream source before operating no-load tap -changers, dual -voltage switches, or Delta- wye switches. 6.1 Tap Changers Externally operated No -Load Tap changer (NLTC) (Fig. 15A & 15B) is provided for all transformers, unless otherwise specified, to change from one operating voltage to another. Typical taps are configured at ±2 X 2.5% of rated voltage; this means that the output voltage of the transformer can be adjusted in 2.5% increments. Tap -changers will have a hot stick operable handle. There are two styles of tap -changer with this type of handle, each requiring a slightly different method for changing tap settings. Figs 15A iM Note: Please refer to Name Plate and other supplied information for more details. Operation and Maintenance Manual April 2021 www.VanTran.com Page 123 6.2 Load Break Oil -Immersed Rotary Switches (LBOR) AWARNING: Do not operate load break equipment if a fault condition is suspected. Doing so can cause an explosion or fire. AWARNING: Use a hotstick to operate transformer load break equipment. WARNING: After operating transformer load break equipment, check that voltages at transformer terminals are the expected values. Checking voltages verifies that load break equipment operated properly and that electrical circuit conditions are as expected. J& WARNING: Before servicing transformer secondary connected equipment, verify that all transformer secondary terminals have zero voltage and ground the transformer secondary terminals following industry accepted safe grounding practices. Grounding secondary terminals protects against situations such as a standby generator energizing transformer from the secondary circuit. 6.2.1 Two -Position LBOR Switch The Two -Position LBOR Switches (Fig. 15) are provided optionally in Padmount transformers to achieve load breaking or making and loop feed switching. LBOR's will have a hotstick operable handle. Multiple Two -Position LBOR Switches may be utilized to achieve loop -feed switching. (Fig. 16B) 1 OnIOff Switch Source A Source B � 0 Q 0 oOPC Transformer Windings Fig. 16iA 2 On/Off Switches Source A Source B Transformer Windings 3 On/Off Switches Source A Source B Transformer Windings The spring -loaded activating mechanism of the switch ensures quick load break or load make operations in less than one cycle and should be performed with a hotstick. Note: Please refer to Name Plate and other supplied information for more details. Operation and Maintenance Manual April 2021 www.VanTran.com Page 124 6.2.2 Four -Position LBOR Switch "Sectionalizing Switch" The Four -Position LBOR Sectionalizing Switch (Fig. 16A & 1613) is provided optionally in loop -feed Padmount transformers to select the feed source, open/close the feed -through loop, and open/close the transformer. LINE I ONLY LOOP THRU TRAN�S�FORIVIER BPE�N DINE B1 BNIII Y Fig, 17A T-Blade 4-Position LBOR Switch iLINE�S LINE BAN LY Fig.17B V-Blade 4-Position LBOR Switch The spring -loaded activating mechanism ensures quick load break action and positive contact engagement through all positions. Switching can be accomplished in less than one cycle and should be performed with a hotstick. Note: For switch ratings and additional switch configurations refer to submittal drawings provided with the transformer. operation and Maintenance Manual April 2021 www.VanTran.com Page (25 6.3 Dual Voltage Switch WARNING: Excessive current can cause damage to transformer winding. Tap -changers and other switches must be in the position shown on the transformer nameplate. WARNING: The transformer must be de -energized and grounded before dual voltage switch is operated. Attempting to change dual -voltage switch on an energized transformer may result in damage to the equipment and severe personal injury. The Dual Voltage Switch (Fig. 18) is typically provided in dual primary Padmount transformers to facilitate selecting one primary voltage from another. Voltage 1 Voltage 2 Note: For switch ratings and additional switch configurations refer to submittal drawings provided with the transformer. Operation and Maintenance Manual April 2021 www.VanTran.com Page 126 6.4 Delta -Wye Switch WARNING: Excessive current can cause damage to transformer winding. Tap -changers and other switches must be in the position shown on the transformer nameplate. WARNING: The transformer must be de -energized and grounded before dual voltage switch is operated. }, Attempting to change dual -voltage switch on an energized transformer may result in damage to the equipment and severe personal injury. The Delta -Wye switch (Fig. 19) is provided with special Padmount transformers that are built and configured to support switching between Delta and Wye voltages. DELTA WYE Note: For switch ratings and additional switch configurations refer to submittal drawings provided with the transformer 6.5 Surge Arresters ELECTRIC SHOCK: Can cause severe injury, death, or damage to equipment. De -energize transformer from a remote upstream source before servicing or operating surge arresters or disconnect switches. Check that all transformer terminals and bushings have zero voltage. Ground transformer following industry accepted safe grounding practices. CAUTION: Excessive test voltage can damage surge arresters. Disconnect surge arresters before running 1. impulse or applied potential tests on the transformer. Surge Arresters (Fig. 20A & 2013) are provided optionally in Padmount transformers to protect equipment and cables from overvoltage surges. During steady state conditions, line -to -ground voltage is applied continuously across the arrester terminals. When surges occur, the arrester immediately limits the overvoltage to the required protective level by conducting the surge current to ground. Upon passage of the surge, the arrester returns to its initial state, conducting minimal leakage current. Operation and Maintenance Manual April 2021 www.VanTran.com Page 127 6.5.1 Dead Front Surge Arresters A dead front surge arrester (Fig. 2OA), also called an elbow arrestor, is a pre -molded rubber elbow that houses zinc oxide Varistor technology to provide over -voltage system protection to dead front Padmount transformers. 6.5.2 Live Front Surge Arresters A live front surge arrester (Fig. 2OB) is a polymer that houses a metal oxide Varistor to provide over -voltage system protection to live front Padmount transformers. ,M Operation and Maintenance Manual April 2021 www.VanTran.com Page 128 6.6 Fusing ELECTRIC SHOCK: Can cause severe injury, death, or damage to equipment. Use a hotstick to service a Bay-O-Net fuse. Do not install a fuse to complete an electrical circuit if a fault condition is suspected. Do not re -energize suspected failed equipment. After installing fuses, energize transformer from a remote upstream source. WARNING: Never attempt to remove fuses with pressure on the tank. Severe burns and personal injury may result from hot dielectric fluid. 6.6.1 Bay-O-Net Fuses The Bay-O-Net fuse (Fig. 21A) is used in series with an isolation link, or current -limiting fuse "ELSP Back-up Fuse", to achieve over -current protection and high current interrupting current rating. The Bay-O-Net fuses are field replaceable and do not require opening the transformer tank. TANKWALL LATCHED HANDLE GASKET Q OUTERTUBE LOCKNUT BOTTOM CONTACT L� OPEN 0 FLAPPER VALVE (OPTIONAL) o UPPER CONTACT i Operation and Maintenance Manual April 2021 www.VanTran.com Page 129 Bay-O-Net Fuse Replacement Instructions (Fig. 21B) 1. Relieve pressure in the transformer tank by pulling out the pressure relief valve for 30 seconds, or until the hissing sound of the valve stops. 2. Repeat step #1 to ensure any residual pressure is released. 3. Attach a hotstick to the fuse holder eye and twist to unlock. 4. Turn fuse holder 90° to break seal gasket and Bay-O-Net housing. S. Quickly draw fuse holder out 8-10 inches to interrupt load. 6. Wait several seconds for fluid to drain from the fuse holder and remove from housing. 7. Remove fuse cartridge from fuse cartridge holder using a 4 inch wrench. 8. Remove end plug using a % inch and a % inch wrench. 9. Replace the fuse. TULIP END OF FLARE END OF BAY-O-NET LINK BAY-O-NET LINK E[ 0 END PLUG CARTRIDGE INNER HOLDER Fig.. 21 B Operation and Maintenance Manual April 2021 www.VanTran.com Page 130 6.6.2 Dry -Well Canister Fuses The dry -well housing (Fig. 22A & 22B) consists of filament -wound glass tubing with a resin -rich outer surface. This outer surface serves as the barrier against oil permeation through the tubing wall. The current limiting fuse that these fuse -holders are designed to accept will not function properly if exposed to transformer oil, which is why the interior of the fuse holder must remain oil tight. Non-Loadbreak Dry -Well Canister Fuse Replacement Instructions (Fig. 22B) 1. De -energize transformer from a remote upstream source. 2. Disassemble by loosening the four sets of screws. 3. Attach a hotstick to the fuse holder eye and pull out. 4. Draw fuse holder out. 5. Replace the fuse and reinsert the new fuse in the fuse holder. 6. Assemble by tightening the four sets of screws. Loadbreak Dry -Well Canister Fuse Replacement Instructions (Fig. 2213) 1. Disassemble by loosening the four sets of screws. 2. Attach a hotstick to the fuse holder eye. 3. Quickly draw fuse holder out to interrupt load "Load Break". 4. Replace the fuse and quickly reinsert the new fuse in the fuse holder "Load Make". 5. Assemble by tightening the four sets of screws. Q Fuse Fig. 22B operation and Maintenance Manual, April 2021 www.VanTran.com Page 131 6.7 Space Heaters WARNING: Potentially High voltages are present. Be sure to disconnect branch circuit switch before working on this equipment. WARNING: Never operate the heater in an atmosphere with an ignition temperature lower than the heater marking Space heaters (Fig.23) are mounted inside the Air Terminal Chamber/Control enclosures to maintain a stable temperature to prevent condensation and allowing critical components to perform with consistent reliability. Operation and Maintenance Manual April 2021 www.VanTran.com Page 132 6.8 Nitrogen Blanket This nitrogen blanket (Fig. 24) protects the transformer's oil from deterioration caused by exposure to moisture or oxygen. The Inertaire° nitrogen gas control system includes all the pressure regulating components and controls which are needed to maintain a positive pressure, nitrogen atmosphere in the gas space of a transformer. When gas space pressure falls below the low-pressure limit, the Inertaire® system automatically feeds fresh nitrogen into the transformer gas space until the gas space pressure is restored to a value above the low-pressure limit. When the gas space pressure exceeds the high-pressure limit, the Inertaire® system automatically vents excess pressure to atmosphere through the pressure relief unit. Fig. 24 6.9 Radiator Functional Operation When the transformer is under loading condition, the transformer windings will be heated enormously, and rises the temperature of transformer oil. That heat must be reduced under allowable value otherwise the transformer may me damaged due over heating. The Radiators installed to the transformer reduces the heat by accelerating the transformer oil. Under loaded condition, warm oil increases in volume and comes to the upper portion of the main tank. Then this oil enters in the radiator through top valve and cools down by dissipating heat through the thin radiator wall. This cold oil comes back to the main tank through the bottom radiator valve. This cycle is repeated continuously till the load is connected to the transformer. Thus, it plays a vital role in increasing loading capacity of an electrical transformer. Operation and Maintenance Manual April 2021 www.VanTran.com Page 133 6.10 Spill Containment Pan Spill Containment pan around the transformers is critical for capturing oil spills and protecting the environment. 7. Dielectric Fluid: 7.1 Type II Mineral Oil Padmount transformers filled with mineral oil that complies with ASTM D-3487, TYPE II. Typical Physical and Chemical Properties pH: N/A Auto ignition temperature: > 315CO Relative density (H20 = 1): 0.89 Pour point: -540C Evaporation rate (butyl acetate = 1): N/A Volatile organic compounds: < 0.001 g/L Miscibility: mixes with other dielectric fluids except silicone Appearance and odor: Clear bright liquid with Mineral odor 7.2 High Fire Point Dielectric Fluid Closed cup flash point: >145°C Boiling point: >238°C Vapor pressure (mm Hg): < 0.01 @ 20*C Vapor density (air = 1): N/A Solubility in water: negligible; < 0.1% Viscosity: 9.3 TO 9.5 CsT at 40°C Padmount transformers filled with High Fire Point Dielectric fluid typically use Envirotemp FR3 fluid which complies with ASTM D-6871. FR-3 is a natural ester derived from renewable vegetable oils — providing improved fire safety and environmental benefits that are superior to mineral oil. Typical Physical and Chemical Properties pH: neutral Closed cup flash point: 320 — 330°C Auto ignition temperature: 401 — 4040C Boiling point: >360°C Relative density (H20 = 1): 0.92 Vapor pressure (mm Hg): < 0.01 @ 200C Pour point: -18 to -240C Vapor density (air = 1): N/A Evaporation rate (butyl acetate =1): nil Solubility in water: negligible; < 0.1% Volatile organic compounds: < 0.001 g/L Viscosity: 32 — 34 CsT at 40°C Miscibility: mixes with other dielectric fluids except silicone Appearance and odor: clear light -green liquid with slight vegetable oil odor Operation and Maintenance Manual April 2021 www.VanTran.com Page 134 8. Factory Testing: CAUTION: The information below is not intended to be as a guideline for testing transformers. Please refer ! to IEE/ANSI C57.12.90-2006 and ANSI/NETA ATS-2009 for more details. 8.1 Routine Tests 8.1.1 Ratio The turn ratio of a transformer is the ratio of the number of turns in the high voltage winding to that in the low voltage winding. When the transformer has taps, the turn ratio shall be determined for all taps and for the full winding. Note: The ratio test can also be used to test polarity, phase relation, and phase sequence. 8.1.2 Winding Resistance Resistance measurements are of fundamental importance for the calculation of the 1211 component of conductor losses and calculation of winding temperatures at the end of a temperature rise test. 8.1.3 No Load & Excitation Current No-load (Excitation) losses are losses that are incident to the excitation of the transformer. No-load losses include core loss, dielectric loss, conductor loss in the winding due to excitation current, and conductor loss due to circulating current in parallel windings. These losses change with the excitation voltage. Excitation current (no-load current) is the current that flows in any winding used to excite the transformer when all other windings are open -circuited. It is generally expressed in percent of the rated current of the winding in which it is measured. The no-load losses consist primarily of the core loss in the transformer core, which is a function of the magnitude, frequency, and waveform of the impressed voltage. No-load losses also vary with temperature and are particularly sensitive to differences in waveform; therefore, no-load loss measurements will vary markedly with the waveform of the test voltage. 8.1.4 Load Losses & Impedance Voltage The load losses of a transformer are losses incident to a specified load carried by the transformer. Load losses include 1211 loss in the windings due to load current and stray losses due to eddy currents induced by leakage flux in the windings, core clamps, magnetic shields, tank walls, and other conducting parts. The impedance voltage of a transformer is the voltage required to circulate rated current through one of two specified windings when the other winding is short-circuited, with the windings connected as for rated voltage operation. Impedance voltage is usually expressed in per unit or in percent of the rated voltage of the winding across which the voltage is applied and measured. Operation and Maintenance Manual April 2021 www.VanTran.com Page 135 8.1.5 Dielectric Strength The dielectric test of the transformer is intended to check the ability of main insulation to earth, inter turn and line end insulation to earth. It is generally performed in two different steps, likewise, separate applied voltage withstands test (Hi -Pot) and induced voltage withstand test. 8.2 Special/Design Tests 8.2.1 Insulation Power Factor (Tan S) The insulation power factor is the ratio of the power dissipated in the insulation in watts to the product of The effective voltage and current in volt-amperes when tested under a sinusoidal voltage and prescribed conditions. 8.2.2 Insulation Resistance Insulation resistance tests are made to determine the insulation resistance from individual windings to ground or between individual windings. Insulation resistance tests are commonly measured in mega ohms or may be calculated from measurements of applied voltage and leakage current. 8.2.3 Temperature Rise A temperature -rise test is defined as a test to determine the temperature rise above ambient of one or more of the transformer's windings, as measured at the terminals. The result for a given terminal pair or winding is the average value of the temperature of the entire circuit; it is not the temperature at any given point in a specific winding. The term average temperature rise refers to the value determined by measurements on a given terminal pair of the winding. It does not refer to the arithmetic average of results determined from different terminal pairs of the transformer. 8.2.4 Lightning Impulse Lightning impulse tests shall consist of and be applied in the following order: one reduced full wave, two chopped waves, and one full wave. The time interval between applications of the last chopped wave and the final full wave should be minimized without intentional delays, to avoid recovery of dielectric strength if a failure were to occur prior to the final full wave. Impulse tests shall be made without excitation. Note: Please refer to IEEE Standard C57.98-2011. Operation and Maintenance Manual April 2021 www.VanTran.com Page 136 8.2.5 Audible Sound Level Audible sound from transformers originates principally in the transformer core and transmits through the dielectric fluid and/or structural supports, to the outer shell and/or other solid surface, where it radiates as airborne sound. In some situations, the windings may be a noise source under rated load conditions, but this noise is not included in this standard. The frequency spectra of the audible sound consist primarily of the even harmonics of the power frequency; thus, for a 60 Hz power system, the audible sound spectra consist of tones at 120 Hz, 240 Hz, 360 Hz, 480 Hz, etc. The audible sound also contains the noise emitted by any dielectric fluid mechanical cooling system. Mechanical cooler sound consists of broadband fan noise, plus discrete tones at the fan blade passage frequency and its harmonics. 9. Maintenance: 9.1 Spare Parts VanTran specializes in manufacturing custom transformers and makes only limited quantities of any one design. Replacement parts are best handled on a case -by -case basis. Should additional or replacement parts be necessary for any VanTran transformer, please contact the factory and provide all available nameplate data. 9.2 Routine Inspection Routine inspection of the exterior of the unit should be performed periodically. The inspection interval should take the environmental conditions of the site into consideration. Salty, damp, or otherwise corrosive environments will require shorter inspection intervals than dry/mild conditions. Periodically check between the radiators (if equipped) for debris and obstructions. Ensure that the unit is getting adequate airflow and that brush, overgrowth, or surrounding equipment is not impeding proper airflow. If the unit is equipped with forced air cooling, manually cycle the fans using the switch in the control panel to ensure proper operation. Clean any dirt or buildup away from the base and cabinet areas to prevent premature rust and deterioration. During an external inspection, check the paint for signs of deterioration, including cracked/chipping paint and rust. If paint damage or deterioration has occurred, touch-up or repaint the exterior of the unit as soon as possible to prevent further degradation. VanTran uses several different painting processes depending on the application. An inquiry to the factory, with the serial number of the unit, will determine the type and compatibility of the touch-up paint required. Operation and Maintenance Manual April 2021 www.VanTran.com Page 137 Gauges should be checked regularly for proper operation. The temperature gauge should fluctuate with load conditions and ambient temperature. However, the gauge should never read over the design value on the nameplate plus the average daily ambient temperature. For example, if it is a 25°C day and it has a 650C rating on the nameplate it should not read over 900C on the gauge. The liquid level gauge will also fluctuate slightly with temperature and loading but a steady drop may indicate a leak and should be addressed. The pressure/vacuum gauge will vary with temperature as well but should never register zero for prolong periods of time (another indication of a leak). 9.3 Dielectric Fluid Sampling Dielectric fluid samples should be taken at least on an annual basis and analyzed by DGA (Dissolved Gas Analysis). Routine DGA testing is one of the best methods of determining the "Health" of a transformer. Although the ultimate failure of a transformer may be impossible to predict, routine oil testing can often indicate a detrimental internal condition before it destroys the unit. Operation and Maintenance Manual April 2021 www.VanTran.com Page 138 r,A city OfA:t,uz Oshkosh MAY 2 7 2025 LIST OF PROPOSED SUBCONTRACTORS SH, �VJSCONSIN Name: None Name: Street Address: Street Address: City, St, Zip: City, St, Zip: Phone Number: Phone Number: Name: Name: Street Address: Street Address: City, St, Zip: City, St, Zip: Phone Number: Phone Number: Name: Name: Street Address: Street Address: City, St, Zip: City, St, Zip: Phone Number: Phone Number: Name: Name: Street Address: Street Address: City, St, Zip: City, St, Zip: Phone Number: Phone Number: Copy this page if you have more than eight (8) entries. \ \ DG01.com\ Projects\ 14556she\Specs\ Service Procurement\ 00 4113.01 -Supplement 1 List of Proposed Subcontractors.docx ARTICLE 9 — BID SUBMITTAL SUBMITTED ON Mayes 27th .2025 IZUICEIVLjr, State Contractor License No. - 1211314 (If a pp" 2 7 2025 If Bidder is: PUBLIC 0SH-ko,311, WISCftRK'S An individual ONSIN Name (typed or printed)* By: (SEAL) (Individual's signature) Doing business;as: Business address: — Phone No.: FAX No.: E-Mail Address., A Partnership Partnership Name: By: (Signature of general partner— attach evidence of authority to sign) ) Name (typed or printed)*, Business address' (SEAL) Phone No.: FAX No.: E-Mail. Address: A Limited ited Liability Comoahv (LLC) SLE� N C LLG Name: NEXT Electric,. Ut (Sow,*\,1O I L 1TrC < S. State in Whic ga In& Musrnwdn SEAL By: 201'5 evidence of authority to. sign) N5\ Name (typed or printed): Christagher 1. Surges //I lWO\ Title: President Business address:. 2801 S. Moorland Rd, New Berlin Wl 53151 Phone No.: 262_so6.12o0, FAX No.: . 262.506.3201 BID FORM Donohue & Associates, Inc. 00 41 13-6 Project No. 14556 E-Mail Address: chris.surges@nextelectriclic.com A Corporation Corporation Name, (SEAL) State of Incorporation: Type (General Business, Professional, Service, Limited Liability): By: Name (typed or printed): Title: (Signature — attach evidence of authority to sign) (CORPORATE SEAL) Attest: (Signature of Corporate Secretary) Business Address: Phone No: FAX No.: E-Mail Address: Date of Authorization to do business is A Joint Venture Name of Joint Venture: First Joint Venturer Name: (SEAL) By: (Signature of joint venture partner — attach evidence of authority to sign) Name (typed or printed): Title: Business address: Phone No.: E-Mail Address: Second Joint Venturer Name: By: lye (Signature of joint venture partner — attach evidence of authority to sign) Name (typed or printed): Title: Business address: (SEAL) Donohue & Associates, Inc. BID FORM Project No. 14566 0041 13-7 Phone No.: E-Mail Address: FAX No.: Phone and FAX Number, and Address for receipt of official communications: (Each joint venturer must sign. The manner of signing for each individual, partnership, limited liability corporation, and corporation that is a panty to the joint venture should be in the manner indicated above.) ARTICLE 10 —SUPPLEMENTS 10.01 The supplements listed below, following "End of Section" are part of this Specification. A. List of Proposed Subcontractors. END OF SECTION BID FORM Donohue & Associates, Inc. 0041 13-8 Project No. 14556 FCIIVIv",g r 0 r' rc 'rc P1Jf3 w< xs ,srr 11, wrscONsrnr CERTIFICATION I certify by my signature below that the equipment supplied by our firm will comply with the Build America, Buy America (BABA) requirements of Title IX of the Infrastructure Investment and Jobs Act, Public Law No. 117-58 § 70901-52 for the Bid Items and Bid Item Alternates listed below (Examples: Bid Item 1-Medium Voltage Transformers, Bid Item 2 Alternate A -Item Description, etc.): Bid Item 1- Medium Voltage Transformers - VANTRAN Name Michael Frunza Printed Name Director of Switchgear Sales Title Revere Electric Supply Company Name 5/27/2025 Date I:\Wastewater\24-03 WWTP Tertiary Treatment\ Administrative\ Contract Information\Contractor-Consultant Agreements\Elect Sery Equip\Addendum #1 (Re-Bid)\00 41 13.03 - Supplement 3 Statement of Compliance with the BABA Act.docx Page 1 of 1 City Hall, 215 Church Avenue P.O. Box 1130 Oshkosh, WI 54903-1 130 http://www.oshkoshwi.gov Unsolicited Alternate Items to Bid Item Prices Bidder may elect to offer unsolicited alternate items to Bid Item 1, Bid ItgM�V`Bld Item 3, or Bid Item 4 of Paragraph 5.02.A. of the Bid Form for Buyer's considerations. All unsolicited alternates shall be non -binding until Buyer provides confip tiara n r tjng the unsolicited alternate shall be accepted and incorporated into the Bid Item. DFP'rOF PUBLIC; WORKS OSHKOSH, WISE (:3WN, Bid Item 1 Alternate A, Unsolicited Alternate Item A (BABA compliant): Description: Provide Cooper transformers Total Price: $ 469,428.00 Bid Item 1 Alternate B, Unsolicited Alternate Item B (BABA compliant): Description: Total Price: $ Bid Item 2 Alternate A, Unsolicited Alternate Item A (BABA compliant): Description: Total Price: Bid Item 2 Alternate B, Unsolicited Alternate Item B (BABA compliant): Description: Total Price: $ Bid Item 3 Alternate A, Unsolicited Alternate Item A (non -BABA compliant): Description: Total Price: $ Bid Item 3 Alternate B, Unsolicited Alternate Item B (non -BABA compliant): Description: Total Price: $ Page 1 of 2 Bid Item 4 Alternate A, Unsolicited Alternate Item A (non -BABA compliant): Description: Total Price: Bid Item 4 Alternate B, Unsolicited Alternate Item B (non -BABA compliant): Description: Total Price: $ Page 2 of 2