Correction Mechanism for N-Phase Closing First and then Opening for Four-Stage Modular Case Circuit Breaker

Abstract

The invention discloses an N-phase connection-disconnection sequential correction mechanism for a four-stage modular molded case circuit breaker. The N-phase connection-disconnection sequential correction mechanism comprises a bracket provided with a shaft hole, wherein a shaft penetrates through the shaft hole and is rotatably provided with a connecting rod which is provided with a pin hole, one end of the connecting rod is arranged in a kidney-shaped hole in the bracket, the other end of the connecting rod is rotatably connected with a support on which a spring is sleeved, one end of the spring is connected with the support, and the other end of the spring is fixedly connected with the support. The N-phase connection-disconnection sequential correction mechanism for the four-stage modular molded case circuit breaker is not only simple in structure and easy to realize, but also favorable for solving the problem of circuit failure easily caused by pin deformation which is often caused by weaker driving force applied to an N-pole monopole unit by the four-stage modular molded case circuit breaker.

Description

technical field [0001] The invention relates to a correcting mechanism, in particular to a correcting mechanism for a four-stage modular case circuit breaker with N-phase closing first and then separating. Background technique [0002] At present, the four-stage modular case circuit breaker is constructed by the following mechanism: four single-pole units with the same structure, which are used to connect or disconnect the A, B, C, and N-phase circuits respectively, and ensure the insulation between each pole ; the transmission mechanism, which is used to provide the driving force for each unit to connect or disconnect the circuit; the release, which is used to detect the generation of abnormal current in the circuit, and drive the transmission mechanism; in addition, the circuit breaker usually uses a pair of through transmission The mechanism link connects the four unipolar units to rotate together, and is used to drive each unipolar unit to connect or disconnect the circu...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to address the above problems, to provide a correction mechanism for four-stage modular case circuit breaker with N-phase closing first and then opening, so as to solve the driving force applied by the four-stage modular case circuit breaker to the N-pole single-pole unit Weaker, easy to cause deformation of the pin

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