ZVG-24 series of indoor alternating-current high-voltage circuit breaker(hereinafter referred to as ZVG Circuit Breaker) is the indoor HV switchgear with three-phase, frequency 50Hz, rated voltage 24kV, as the protection and control unit for power grid equipment, industrial and mining power equipment. Because of the special high performance of the circuit breaker, it is especially applicable to the place where frequent operation or repeatedly breaking short-circuit current is applied.