Equipment summary
Ratings and represented scope
- Unit ID
- JJ-HB501-3
- Manufacturer
- Virginia Transformer Corp.
- Manufacturer basis
- Three unit-specific nameplates reviewed
- Rating
- 36/48/60 MVA
- Voltage / output
- 115 kV delta / 34.5 kV grounded wye
- Quantity
- 3 documented units - HB501A, HB501B, and HB501C
- Condition basis
- February-March 2026 nameplates; current condition requires confirmation
- Current location
- Provided after qualified RFQ
Technical highlights
- ONAN/ONAF/ONAF, 60 Hz, three-phase, vector group Dyn1
- Measured impedance: 8.42%, 8.41%, and 8.46% at 36 MVA by unit
- Copper windings, Type II mineral oil, and ABB HV LTC
