AIRFIELD LEAKING TRANSFORMER

SCOPE: The Contractor shall provide all personnel, equipment, tools, materials, supervision, and other items and services necessary to remove and dispose of existing airfield lighting transformers and replace with new (Fig. 1-11)  at the U.S. Coast Guard, Base Cape Cod, on Joint Base Cape Cod, Buzzards Bay, MA, 02542.  Existing transformers: Contractors shall verify transformer specifications. Transformer 413 (Fig. 1-3), adjacent to building 614 and runway 23. MANUFACTURER - McGraw Edison, Power System Division, Canonsburg, PA, 15317, single phase, 60 hertz, KVA 37 ½, 65° RISE, serial number 74ZD743004, voltage rating 4160GRD.Y/2400x12470GRD.Y/7200x13800GRD.Y/7970 240/120, cat nc. AAVL 115079A-37-K1, class OA, % IMP. 1.9 - 1.8, WDG MAT L.V. AL HV CU, wt.lb. 855, H.V. CONNECTION: VOLTAGE 2400 – SWITCH POSITION 2.4, VOLTAGE 7200 – SWITCH POSITION 7.2, VOLTAGE 7970 – SWITCH POSITION 7.9 Transformer 523 (Fig. 4-6), adjacent to building 614 and runway 14, MANUFACTURER - McGraw Edison, Power System Division, Canonsburg, PA, 15317, single phase, 60 hertz, KVA 37 ½, 65° rise, serial number 73ZE858030, voltage rating 4160GRD.Y/2400x12470GRD.Y/7200x13800GRD.Y/7970 240/120, cat nc. AAVL 115079A-37-K1, class OA, % imp. 1.9 - 1.8, WDG MAT L.V. AL HV CU, wt.lb. 855, H.V. CONNECTION: VOLTAGE 2400 – SWITCH POSITION 2.4, VOLTAGE 7200 – SWITCH POSITION 7.2, VOLTAGE 7970 – SWITCH POSITION 7.9 Transformer 232177 (Fig. 7-9), adjacent to building 3181 parking. MANUFACTURER - ABB, Power System Division, Jefferson City, MD, 21755, Three phase distribution, 60 hertz, KVA 1500/1680, 55/65° RISE, style number F3HF147L66, serial number 11JC572250001, MFG Date Jun-11, voltage rating 22860GRDy13200, HV BIL KV 125, HV MTL AL, % Impedance 5.75, Low voltage 4160Y/2400, LV BIL KC 60, LV MTL AL, Mineral Oil 513 Gallons. NOTE: The Contractor shall investigate and determine the existence of oil leaks and provide analysis/feasibility for replacement or repair. Option Bid: Transformer 575 (Fig. 10-12), adjacent to building 195 and runway 5, Manufacturer Southeastern Transformer Co, Dunn, NC, single phase, 60 hertz, KVA 15, % imp. 3.6, serial number 1019102, volts 12470GRDY/7200-240/120.

Updated Section: 

We discovered an issue with the Transformer replacement Statement of Work (SOW).  There are two transformers that service building 3181 the wrong transformer is identified on in SOW.

1. Statement of Work 1.1.1 transformer 3) description  “Transformer 232177 (Fig. 7-9), adjacent to building 3181 parking. MANUFACTURER - ABB, Power System Division, Jefferson City, MD, 21755, Three phase distribution, 60 hertz, KVA 1500/1680, 55/65° RISE, style number F3HF147L66, serial number 11JC572250001, MFG Date Jun-11, voltage rating 22860GRDy13200, HV BIL KV 125, HV MTL AL, % Impedance 5.75, Low voltage 4160Y/2400, LV BIL KC 60, LV MTL AL, Mineral Oil 513 Gallons. NOTE: The Contractor shall investigate and determine the existence of oil leaks and provide analysis/feasibility for replacement or repair.”

Transformer 3) description SHOULD read “ Transformer 138613, adjacent to building 3181 apron, Manufacturer -ABB, Power System Division, Jefferson City, MD , 21755, 3 phase distribution, 60 hertz, KVA 1000/1120, 55/65°, style number F25E017L67, serial 11JC573270001, MFG Date July 11, voltage rating 4160GRDY/2400, HV AL, Impedance 5.80, low voltage 480Y/277, LV 30, mineral oil 329 gallons.

SEE UPDATED SOW FOR FULL REQUIREMENTS