The specific function and operation mode of the auxiliary switch on the circuit breaker switch
High-voltage circuit breakers generally have a number of auxiliary contacts, their on-off and circuit breaker main contact the same (or vice versa), so the secondary circuit
circuit breakers and disconnectors of the electrical latch circuit and all low-voltage circuit.
Secondary circuit (secondary circuit) Definition: measuring circuit, relay protection circuit, switch control and signal circuit, the operation of power circuits,
can be through the auxiliary contact circuit breaker Split position, to achieve automatic control (even jump, BZT, mutual latch, start and stop protection, and so on).
