High Voltage Equipment MaintenanceI: Relay Protection
- Fault protective functions, including distance functions,
- voltage-restrained overcurrent functions, or voltagecontrolled
- overcurrent functions.
- Loss-of-field relays.
- Volts-per-hertz relays.
- Negative sequence overcurrent relays.
- Overvoltage and under voltage protection relays.
- Stator ground relays.
- Communications-based protection systems such as transfer-trip
- systems.
- Generator differential relays.
- Reverse power relays.
- Frequency relays.
- Breaker failure protection.
Clients
