APPARATUS FOR CONTROLLING CIRCUIT BREAKER OF ALTERNATING CURRENT ELECTRIC RAILROAD FOR INRUSH CURRENT REDUCTION

摘要

The controller of the circuit breaker for AC electric railway is provided with a pre-charge voltage waveform measured from a voltage sensor provided at an input terminal of the circuit breaker in the input command to the circuit breaker, A control unit for delaying the input phase angle? And a driving unit connected to the circuit breaker and receiving the actual turn-on command signal to turn on the circuit breaker in an open state. According to the controller of the circuit breaker for AC electric railway for reducing the inrush current of the present invention, it is possible to reduce the inrush current, thereby suppressing the occurrence of abnormal overvoltage of the electric vehicle due to the inrush current and the inrush current, The unnecessary protection operation is eliminated.