Medium-Voltage Potential Transformers (10~25 kV)
EPF-20SH
About the Product
Intended for power companies, the EPF-20SH single-phase potential transformer is designed to be mounted inside the SF6 gas-insulated MOF (Metering Outfit) panel of a 25.5kV (max.) power system. With an added tap in the secondary winding, this PT can offer two voltage ratios (120/60:1) and allows easy switching between the two, while maintaining the accuracy and burden rating of 0.3Y at each voltage ratio. Insulated with Araldite® epoxy resin, this indoor potential transformer offers excellent electrical performance and high reliability.
Specifications
- Indoor usage; epoxy cast (epoxy resin)
- Standard: IEEE
- System Voltage: 25.5 kV or below
- Frequency: 50 / 60 Hz
- Intended for a SF6 gas-insulated MOF panel
- Nominal Voltage Ratio: 120/60:1 (two voltage ratios)
- Accuracy and Burden: 0.3Y
- Approximate Weight: 57 kg
Selection Table
Model | Primary Voltage | Secondary Voltage | Accuracy / Burden | AC / BIL |
EPF-20SH | 23.90/√3 kV / 11.95/√3 kV | 115V | 0.3Y / 0.3Y | 50/125 kV |