Equipment Testing
Testing of Substation Equipment’s such as current transformer, voltage transformer, Circuit Breaker, Main /Aux. relays, meters, Aux. transformers, Power transformer, Disconnector, Earth switch, Bus bar and cable. Protection Relay Coordination
Numerical Relays
Testing & Configuration of Distance protection, Transformer differential protection, PWD protection, Line differential protection, Motor protection and Directional overcurrent protection
Scheme Checks
Inter trip scheme checks Interlock scheme checks HV, LV & LVAC- REF sensitivity and stability checks Transformer Differential protection sensitivity and stability tests Voltage selection scheme and Synchronizing scheme checks
Annual Maintenance
Testing of Earth Mat resistance, Step & Touch potential High voltage testing for Circuit breaker, Bus bar and Cables Panel scheme modification works Relays Retrofit works
