Virginia Transformer Corp.
500 kVA Oil Filled Distribution Transformer
In Stock – Available for Immediate Shipment
The 500 kVA oil-filled distribution transformer from Virginia Transformer is engineered for dependable medium-voltage power distribution in utility, commercial, and industrial applications. Featuring a sealed ONAN cooling system, mineral oil insulation, and CRGO step-lap core construction, this unit delivers reliable performance with reduced operating losses. Available from inventory for immediate shipment.
Product type
Oil-Filled Transformer
kVA Rating
500 kVA
Primary Voltage
13.2 kV
Secondary Voltage
480Y / 277 VAC
Designed for long-term outdoor operation Reduced energy losses and quieter performance Utility-grade construction for dependable service Available for immediate shipmentInterested in This Equipment?
Contact our team to confirm pricing, availability, freight options, and estimated delivery for this unit.
Full Specifications
| Product | Distribution Transformer |
| Manufacturer | Virginia Transformer Corp. (VTC) |
| Product # | M3257AA |
| kVA | 500 |
| Cooling Class | ONAN |
| Temperature Rise | 65C |
| Fluid | Mineral Oil Type II |
| Frequency | 60 Hz |
| Winding Material | Aluminum (HV & LV) |
| Primary Voltage (HV) | 13,200 V |
| Secondary Voltage (LV) | 480Y / 277V |
| Phases | 3 |
| HV BIL | 95 kV |
| LV BIL | 30 kV |
| Impedance | 5.52% |
| Vector Group | Dyn1 |
| LV Output Voltage | 480 V |
| LV Output Current | 601.4 A |
| Tank Pressure Positive | 9 psi |
| Tank Pressure Negative | 7 psi |
| CL Fuse | CBUC15150D100 (Copper) |
| Bay-O-Net Fuse | 4000353c14 (Copper) |
| Total Weight | 8,665 lbs. |
| Weight Core & Coil | 2,600 lbs. |
| Weight Tank & Fitting | 3,055 lbs. |
| Untanking Weight | 2,865 lbs. |
| Liquid Volume | 405 Gallons |
| Tap Charger HV Position 1 | 13,860 Voltage, 20.82 Amps |
| Tap Charger HV Position 2 | 13,530 Voltage, 21.33 Amps |
| Tap Charger HV Position 3 | 13,200 Voltage, 21.86 Amps |
| Tap Charger HV Position 4 | 12,870 Voltage, 22.43 Amps |
| Tap Charger HV Position 5 | 12,540 Voltage, 23.02 Amps |
Purchase Inquiry
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