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Product: 500 KVA Liquid Fill Pad Mount Transformer Type, or Equal MPD Naval Base San Diego is requesting a 500KVA fluid filled 12470-480/277 3Ph Pad mount Transformer ^HITACHI 500 KVA Liquid Filled Pa... Product: 500 KVA Liquid Fill Pad Mount Transformer Type, or Equal MPD Naval Base San Diego is requesting a 500KVA fluid filled 12470-480/277 3Ph Pad mount Transformer ^HITACHI 500 KVA Liquid Filled Padmounted Transformer Type. Padmounted HV 12470 Delta LV-480Y/277 3P 60HZ Description: Type CU/CU Padmounted Transformer Fluid Natural Ester Fluid Core Grain Oriented Steel Phase 3 Phase Frequency 60 Hz Average Winding Rise 65 °C Ambient Temperature 30 °C High Voltage 12470 Delta High Voltage Taps +2 -2 2.5%High Voltage BIL 95kV BIL Low Voltage 480Y/277 Low Voltage BIL 30kV BIL Low Voltage Neutral XO bushing with ground strap Feed Configuration Loop feed Color Bell Green (Munsell 7GY 3.29/1.5) Customer Specification NONE Features (included in price): TANK & CABINET Dry Nitrogen Blanket 304L Stainless Steel Transformer (Tank+Base+Cabinetry) 6 parking stands Full Tank Weather cover Seismic rated transformer design with seismic anchors Penta-head cabinet handle bolt SST hardware GROUNDING 2-hole ground pads (1 in HV and 1 in LV) BUSHINGS Threaded stud LV bushings x 4 Load break inserts 25 kV (dead front) x 6 ANSI C57.12.34 Fig 9&11 HV bushing pattern (minimum) 200-amp HV bushing wells x 6 6-hole NEMA spade terminals x 4 Spade Supports ANSI C57.12.26 Fig 3&4a minimum stgrd LV bushing pattern ARRESTERS 12 kV MCOV 10.20 elbow arrester - 25 kV interface x 3 FUSES Oil retaining valve on bayonet x 3 Scoop drip shield x 3 Bayonet expulsion fuse no isolation link x 3 Oil-immersed partial range current limiting fuse x 3 Spare current limiting fuses x 3 SWITCHES 4-position 200-amp T-blade make before break (closed transition) MONITORING Thermometer w 2 alarm contacts 1 NO & 1 NC each Qualitrol 167-288-01 p/n 30C6637H01 Pressure Vac Gauge with Bleeder & Contacts Schrader valve Minco temperature sensor Liquid Level Gauge Qualitrol 032-35E p/n 2810777H01 with one high and one low contact both are 1 NO & 1.NC Large pressure relief device w INO & 1NC Contact 208-60F p/n 2B12401H01 Pressure Relief Valve FITTINGS Drain valve and sampler MARKINGS Three (3) DANGER HIGH VOLTAGE Signs Non-PCB label UL Listed on Nameplate Stainless steel nameplate Fuse operation warning label "Non-PCB" on Nameplate Mr Ouch DANGER label internal OTHER 9.5" x 17.5" Tank Handhole Cover 24" deep cabinet DOE Efficiency (2016) TESTS (1918DGA) DGA Before Shipment Six-hour leak test Contains less-flammable biodegradable natural ester fluid with no detectable level of PCB, less than 1PPM, at the time of manufacture.