TRIP TRANSFER SCHEME OF SUBSTATION
In high voltage grid substations or generating stations during maintanence of circuit breaker, load of that bay may be diverted to Transfer Bus Coupler(TBC). During that load diversion procedure protection of line or transformer is achieved by trip transfer scheme. Line side CT is mandatory for TRIP TRANSFER SCHEME. Scheme is achieved by panel to panel bus wiring and TTS switch. we consider only one trip coil for easy understanding.