Breaker control circuit design method capable of realizing bidirectional supervision function for control circuit of breaker
A technology of control loop and design method, applied in the direction of protection switch operation/release mechanism, etc., can solve the problems of reducing the reliability of user power supply, the circuit breaker cannot be closed normally, the hidden danger of power grid operation stability, etc., and achieve the effect of increasing the conversion time.
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[0038] The present invention will be further described below in conjunction with accompanying drawing.
[0039] Such as figure 2 As shown, the circuit breaker auxiliary contact transfer device of the embodiment includes a circuit breaker auxiliary transfer switch 1 , a spring 2 and a transmission link 3 . One end of the transmission connecting rod 3 is externally connected to the main contact drive shaft of the circuit breaker, the other end of the transmission connecting rod 3 is connected to one end of the spring 2, and one end of the spring 2 is connected to the contact of the auxiliary transfer switch 1 of the circuit breaker. Under the action of the transmission link 3, the spring 2 drives the contact of the auxiliary transfer switch 1 of the circuit breaker to the end point for 50ms to 5s. The circuit breaker auxiliary contact switching device is different from the traditional mechanical linkage to drive the circuit breaker auxiliary switching device. The circuit break...
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