A new zw32 circuit breaker inrush current control device

Abstract

The invention relates to a novel ZW32 circuit breaker surge flow control device mounted in an inner cavity of a base seat. The novel ZW32 circuit breaker surge flow control device comprises a transmission arm extends along a long axis direction of the base seat, a pair of installation plates symmetrically mounted on two ends of the transmission arm, a surge flow control box mounted on one end far away from the installation plates and a connecting plug head connected with the surge flow control box; driving electric motors, a large transmission tooth wheel and a small transmission tooth wheel that are engaged with each other, a switch-on spring, a switch-on trigger, a switch-on half shaft, a switch-on push rod, a switch-on electric magnet, an output crank arm, a switch-off trigger, a switch-off half shaft, a switch-off push rod and a switch-off electric magnet are mounted on the two installation plates. The novel ZW32 circuit breaker surge flow control device is advantageous in that an inner structure of the base seat of a traditional circuit breaker can be improved, a surge flow electrical apparatus release can be eliminated, unification of a surge flow release return loop circuit and a normal release return loop circuit can be realized, a mechanical interlocking form is adopted, products are enabled to be only connected with one of a surge flow controller or a normal controller, and a current loop circuit shunting problem can be thoroughly solved.

Description

technical field [0001] The invention relates to a circuit breaker, in particular to a novel ZW32 circuit breaker inrush current control device. Background technique [0002] A circuit breaker (English name: circuit-breaker, circuit breaker) refers to a device that can close, carry and break current under normal circuit conditions and can close, carry and break current under abnormal circuit conditions within a specified time switchgear. Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. The division of high and low voltage boundaries is relatively vague. Generally, those above 3kV are called high-voltage electrical appliances. Circuit breakers can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, and automatically cut off the circuit when they are severely overloaded, short-circuited, or under-voltage. Its function is equivalent to a fu...

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a new ZW32 circuit breaker inrush current control device, which can solve the problem of shunting the inrush current tripping circuit and the conventional control circuit of the existing product

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