Creepage breaker

Abstract

The present invention provides an earth leakage circuit breaker, in which a switch for insulation testing is added between the leakage detection circuit and the main circuit after the main parts of the circuit breaker are mounted on the main body case, and the operation switch is turned off during the insulation test to disconnect the leakage detection circuit from the main circuit In an earth leakage circuit breaker, a switch for insulation testing is constituted by an assembly unit of a switch main body and an actuator that connects one end to the operating rod of the switch main body and makes the other end face the trip bar of the circuit breaker opening and closing mechanism, and is used for the insulation test. The actuator is equipped with a push-twist locking button on the cover of the main body casing. The push-twist operation of the button cuts off the main body of the switch through the actuator, and drives the trip bar to the lock release position to trip the circuit breaker. By constraining the actuator to hold the action position via the button, it is possible to improve the assembly structure in the switch mounted on the leakage circuit breaker insulation test to improve the operability and the interlocking function with the switching mechanism without changing the layout of the main parts of the circuit breaker. Additional equipment switches are available.

Description

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AI Technical Summary

Benefits of technology

This patented technology describes a safety fuse used in electrically power systems where there are no intentional acts like opening up any equipment connected through wires when they shouldn't happen (such as accidentally). However, existing designs have limitations such as lacking protection against overload conditions caused by incorrect operations or mistaken settings made beforehand. Additionally, some devices require manual adjustment while still working properly but may also cause problems.

Problems solved by technology

This technical problem addressed in this patents relating to ground fault protection circuits used in electrical equipment includes how to ensure proper functionality without causing damage or malfunctions caused due to incorrect settings while minimizing operator effort input.

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