Voltage Transformers for Gas-insulated Substations
Main Characteristics
- Up 72 to 550 kV
- Thermal capacity up to 4000 VA
- Burdens up to 200 VA class 0.2 %
- Protection against ferroresonance and high-frequency overvoltage conditions
- HV primary winding using long anti-resonant layers technology with synthetic film as insulation between layers
- Compact design
- Manufacturing in 'dust-free' room
- Single-phase or three-phase VT
- Insulation of coils: SF6 under 4 to 5 bars absolute pressure
- Aluminum tank