U.S. Department of Agriculture, ARS, FMOD, BA, Contracting Section, Bldg. 003, Room 329, 10300 Baltimore Avenue, Beltsville, Md. 20705

61 -- PURCHASE OF ONE THREE PHASE 1000 KVA PAD MOUNTED TRANSFORMER SOL 45-3K47-96 DUE 092496 POC Donna Hardy, Procurement Analyst, 301/504-5073, FAX No. 301/504-5009. This is a combined synopsis/solicitation for commercial items prepared in accordance with the format in FAR subpart 12.6 as supplemented with additional information included in this notice. This announcement constitutes the solicitation only; bids are being requested and a written solicitation will not be issued. The Solicitation No. 45-3K47-96 is issued as a invitation for bids and incorporates provisions and clauses that are in effect through Federal Acquisition Circular 90-39. The standard industrial classification code is 3612, with a small business standard of 500 employees. This acquisition will be procured under a small business set-aside. Delivery is required within 120 days upon receipt of NTP. Delivery is F.O.B Destination to the U.S. Department of Agriculture, Building 426, BARC-East, Beltsville, Maryland. Interested/qualified sources must respond by September 24, 1996 at 2:00 p.m. Responses shall include literature, brochures and other such information corresponding to the required items which demonstrates the capabilities of the transformer. The following FAR clauses and provisions apply: FAR 52.212-1, Instruction to Offerors - Commercial items; FAR 52.212-3, Offeror Representatives and Certifications - Commercial items. The following FAR clauses in paragraph (b) of FAR 52.212-5, contract terms & conditions - required to implement statues or executive orders - commercial items, will apply to the resultant contract: 52.222-26, 52.222-35, 52.222-36, 52.222-37, 52.225-3 and 52.225-19. All offerors must include a completed copy of FAR 52.212-3 with their response. Because this a commercial item, FAR 5.203(b) will be used in establishing the solicitation response time. Transformer specifications: Three-Phase Pad-Mounted Transformer Dead-Front. ANSI C57.12.26 and ANSI C57.12.28 with separate high and low-voltage compartments, primary switching fuses and accessories. Compartments: Divide high-and low-voltage compartments into sections with steel isolating barriers extending the full height and depth of the compartment. Compartment doors: hinged lift-off type with stop in open position and three-point latching. High Voltage: High voltage compartment shall contain the incoming line, insulated high-voltage load break connectors, six high-voltage bushing wells with inserts configured for radial feed application, connector parking stands with insulated standoff bushings, protective caps, dead-front surge arresters, feedthrough inserts, load-break switch handle, access to dry-well fuse canisters, oil-immersed fuses, tap changer and ground pad. (a) Insulated high-voltage load-break connectors: IEEE 386, rated 95 kV BIL, 15 kV for operation on a 13.2 kV system. Current rating: 200 amperes rms continuous. Short time rating: 10,000 amperes rms symmetrical for a time duration of 0.17 seconds. Connectors and inserts shall be the product of a single manufacturer. Connector shall have a steel reinforced hook-stick eye, grounding eye, test point and arc-quenching contact material. Provide stainless steel holddown bail assembly (b) Load-break switch: Radial-feed oil-immersed type rated at 15 KV, 95 KVBIL, with a continuous current rating and load-break rating of 200 amperes and a make-and-latch rating of 10,000 RMS ampers symmetrical. Locate the switch handle in the high-voltage compartment (c) Current-limiting fuses dry-well mount: ANSI C37.47. Provide fuses in air-insulated oil-sealed, dead-front, non-load-break dry well fuse canisters and on the load side of the load-break switch. Interlock fuse canisters with the load-break switch so that the fuses may be removed only when the switch is in the ''Off'' position. The fuses shall remove the transformer from service in case of an internal fault. Size fuses to approximately 150 percent of the transformer rating and adequately coordinate with the low voltage breakers in the Main Distribution Panel so that the low-voltage breakers clear any downstream low-voltage fault or overload before the high-voltage fuses begin to melt. The fuses shall have an interrupting rating of 50,000 rms amperes symmetrical at the system voltage specified. Asymmetrical multiplying factor is 1.5. Furnish a spare fuse for each fuse provided (d) Surge arresters: ANSI/IEEE C62.11, rated 10 kV, fully shielded, dead-front, elbow type suitable for plugging into inserts. Provide three arresters for radial feed circuits (e) Bushing Well Inserts: IEEE 386, 200 Amp., 15 kV Class. Provide an insert for each bushing well (f) Protective Caps: IEE 386, 200 Amp., 15 kV Class. Provide insulated protective caps (not shipping caps) for insulating and sealing out moisture from unused bushing inserts and insulated standoff bushings and (g) Parking stands: Provide a parking stand near each bushing well. Provide insulated standoff bushing for parking of energized loadbreak connectors on parking stands. Low Voltage: Low-voltage compartment shall contain gages, valves, thermometers, drains cable lugs, low-voltage bushings, pressure relief valve, filling provisions, stainless steel transformer nameplate and ground pad. Transformer: Less-flammable liquid-insulated, two winding, 60 hertz, 65 degrees C rise above a 30 degrees C average ambient, self-cooled type. Transformer shall be rated as shown, 95 kV BIL, high voltage of 13.2 Kv wye primary, with four 2 1/2 percent full capacity taps, two above and two below rated primary voltage. Secondary voltage shall be 208Y/120 volts. Minimum tested impedance shall not be less than 3.5 percent. Tap changer shall be externally operated, manual type for changing tap setting when the transformer is de-energized. Transformer shall include the following accessories: drain and sampler valve; filler connection; liquid level gage; grounding pads; top filter press connection; lifting lugs; provisions for jacking under base; diagrammatic nameplate; pressure relief valve; pressure-vacuum gage and dial type thermometer with maximum temperature indicator. The transformer base construction shall be of the fabricated type and suitable for using rollers or skidding in any direction. Provide transformer top with an access handhoe. Transformer shall have its kVA rating conspicuously displayed on its enclosure. The transformer shall have an insulated low-voltage neutral bushing with lugs for ground cable, and with removable ground strap. Metering: Shall consist of a socket-mounted outdoor watthour meter surface mounted flush against the side of the low-voltage compartment (a) Meter: ANSI C12.10. Provide one watthour meter coordinated to the ratios of the current transformers and transformer secondary voltage. Meter shall be Class 20, Form 9S, suitable for 208Y/120-volt, three-phase, four- wire system with three current transformers. Meter shall meet Class II finish requirements. Meter cover shall be polycarbonate and the entire meter and socket assembly shall be lockable to protect against tampering and unauthorized meter removal. Provide watthour meter with not less than four pointer-type kilowatt-hour registers and mechanical demand register. Demand register shall be Scale Class 6 and shall be sweep pointer indicating type, with a 15-minute interval conforming to ANSI C12.4. Meter accuracy shall be within plus or minus one percent. Provide correct multiplier on face of meter (b) Meter fusing: Provide a fuse block mounted in the secondary compartment containing one fuse per phase to protect the voltage input to the watthour meter. Size fuses as recommended by the meter manufacturer (c) Socket: ANSI C12.7. Provide NEMA type 3R, box-mounted socket having automatic circuit-closing bypass and having jaws compatible with the requirements of the meter. Cover unused hub openings with blank hub plates. Paint box Munsell 7GY3.25/1.5 green to match the pad-mounted transformer to which the box-mounted socket is attached. The Munsell color notation is specified in ASTM D 1535 and (d) Current transformers: ANSI/IEEE C57.13. Provide three current transformers with a metering accuracy Class of 0.3 through 2.0, with a minimum RF of 1.33 at 30 degrees C, with 600-volt insulation, and 10 kV SIL. Size current transformers as indicated. Provide butyl-molded window type current transformers mounted on the low-voltage bushings or on a suitable bracket in the low-voltage compartment positioned to allow power transformer secondary cables to connect through the current transformers to the power transformer secondary bushings. Route current transformer leads in a location as remote as possible from the power transformer secondary cables to permit current measurements to be taken with hook-on-ammeters. Corrosion Protection: Bases and cabinets of transformers shall be corrosion resistant and shall be fabricated of stainless steel conforming to ASTM A 167, Type 302 or 304. Form cabinets of stainless steel sheets no less than No. 13 U.S. gage. Paint bases, cabinets and tanks Munsell 7GY3.29/1.5 green. The Munsell color notation is specified in ASTM D 1535. Insulating Liquid: Do not provide nonflammable transformer liquids including askarel and insulating liquids containing polychlorinated biphenyls (PCB's) and tetrachloroethylene (perchloroethylene), chlorine compounds and halogenated compounds. Less-flammable transformer liquids: NFPA 70 and FM P7825 for less-flammable liquids having a fire point not less than 300 degrees C tested per ASTM D 92 and a dielectric strength not less than 33 kV tested per ASTM D 877. Less-flammable transformer liquids used as a switching medium for oil-immersed type load-break switches shall have load-switching tests performed in accordance with ANSI/IEEE C37.71. Fire point and dielectric strength shall not decrease below specified values after 120 energized load-switching operations, including full inductive load switching at currents up to 300A at 15 kV. Compatibility of less-flammable transformer liquids with seals and gasketing materials in oil-immersed type load-break switches shall be determined by tests conducted in accordance with ASTM D 3455. Test results shall show no evidence of shrinkage, swelling or absorption caused by the liquid. (0247)

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