Instrument transformers (current and voltage)
- Gas Insulated Voltage Transformer;
- Oil – immersed Capacitive Voltage Transformer;
- SF6 Gas Insulated Current Transformer;
- Oil – immersed Inverted Current Transformer;
- Oil – immersed Upright Type Current Transformer.
GIS
GIS for different range of nominal voltage – 126kV, 145kV, 252kV, 420kV, 550kV, 800kV.
Circuit Breaker
Dead tank circuit breaker, the interrupters are housed in porcelain insulators filled with SF6. 35kV to 145kV circuit breakers are equipped with spring operating mechanism. 252kV circuit breakers are equipped with spring and hydraulic spring operating mechanism. 550kV and 800kV circuit breakers are equipped with hydraulic spring operating mechanism. They all adopt self-energized arc extinguishing principle of “thermo-blast and auto-puffer”. The circuit breaker can be used to control and protect and also can be used as contact circuit breakers to switch the capacitor bank.
Disconnector
- Double Columns, Horizontal Rotation HV AC Disconnector;
- Double Columns, V-Shaped Horizontal Rotation HV AC Disconnector;
- Single Column, Double Arms, Vertical Expansion HV AC Disconnector;
- Three Columns, Horizontal Rotary HV AC Disconnector;
- Single Column, Single Arm, Vertical Expansion HV AC Disconnector;
- Double Columns, Horizontal Expansion HV AC Disconnector;
- Single Column HV AC Earthing Switch;
- HV DC Earthing Switch;
- HV DC Disconnector.