GZG49 DC power is mainly used in power system of power plant, hydropower station and various kinds of substations, which can be used as a circuit breaker points off the power and secondary circuits of instrument and meter, relay protection, automatic con

GZG49 DC power is mainly used in power system of power plant, hydropower station and various kinds of substations, which can be used as a circuit breaker points off the power and secondary circuits of instrument and meter, relay protection, automatic control and accident lighting power.