Because there is no HV breaker or CTs, a multifunction relay is installed on the 11kV (LV) side only of each transformer, communicating digitally with the corresponding HV relay at the 33kV station.
Because there is no HV breaker or CTs, a multifunction relay is installed on the 11kV (LV) side only of each transformer, communicating digitally with the corresponding HV relay at the 33kV station.