Self-looping device of circuit breaker control loop

Abstract

The invention relates to the technical field of circuit breaker control loop fault detection, in particular to a self-looping device of a circuit breaker control loop. The self-looping device comprises an operating panel, an insulating shell and a changeover switch for load conversion; the operating panel is mounted at the top of the insulating shell; the operating panel is provided with a workinggear position, a test gear position, a zero setting gear position and an operating handle capable of rotating the changeover switch; and any three groups of contact points on the changeover switch are respectively set as a changeover switch public end test contact point, a changeover switch closing circuit test contact point and a changeover switch opening circuit test point. The self-looping device has reasonable and compact structure and convenient use, so that the arrangement and distribution of the fault treatment work of the circuit breaker control loop are more reasonable, and a professional structure of a fault treatment personnel team is more targeted, so as to shorten the response time of a fault repair command and reduce the number of persons for the fault treatment and reducingthe cost.

Description

technical field [0001] The invention relates to the technical field of circuit breaker control loop fault detection, and relates to a circuit breaker control loop self-loop device. Background technique [0002] The circuit breaker is the core substation equipment in the operation of the power grid. Its working status plays a vital role in the safety and stability of the power grid. Therefore, we have always treated the failure of the control circuit of the circuit breaker as a type of equipment crisis defect. . The operating signal of the circuit breaker is sent from the protective device, and is applied to the electromagnetic unit inside the insulating housing of the circuit breaker through the control cable and the operating condition judgment element to trigger the action of the circuit breaker mechanism. Only for circuit breaker operating circuit faults, the circuit breaker operating circuit is manually divided into two parts at the circuit breaker terminal box, one par...

AI Technical Summary

Problems solved by technology

[0004] The present invention provides a circuit breaker control circuit self-loop device, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the problem that when the existing circuit breaker fails, it is impossible to manually accurately determine which section of the circuit breaker control circuit fails. There are problems of time-consuming and labor-intensive maintenance and low construction efficiency

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