A circuit breaker fault trip indicating mechanism

Abstract

A circuit breaker fault tripping indication device comprises a tripping buckle (1). The device is characterized in that the tripping buckle (1) is provided with a tripping buckle boss (101), and in the rotation process of the tripping buckle (1), the tripping buckle boss (101) can respectively contact a front boss (201) and a rear boss (202) of an indicator (2) to push the indicator (2) to move back and forth along the horizontal direction. A function of fault indication is added to miniature circuit breakers. When a circuit breaker is switched from a closed state to an open state in the use process under the action of the tripping buckle on the indicator, whether the tripping is fault tripping can be judged according to the position of the indicator in an observation window. After the fault is removed, as long as the circuit breaker is closed again, the indicator will be automatically switched from an alarm state to an initial state. The whole mechanism can be realized through simple improvement on the existing circuit breaker. The structure is simple. The efficiency of circuit breaker maintenance is improved.

Description

technical field [0001] The invention belongs to the technical field of low-voltage electrical equipment, and in particular relates to a circuit breaker fault trip indicating mechanism, which can help users to accurately judge that the circuit breaker is in the artificial opening and closing or fault tripping state. Background technique [0002] Circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to their scope of use. Low-voltage circuit breaker, also known as automatic switch, commonly known as "air switch", also refers to low-voltage circuit breaker. It is an electrical appliance that not only has the function of manual switch, but also can automatically protect against voltage loss, undervoltage, overload, and short circuit. It can be used to distribute electric energy, start asynchronous motors infrequently, protect power lines and motors, etc., and can automatically cut off the circuit when they have severe overload...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a circuit breaker fault trip indicating mechanism for the technical defect that the existing circuit breaker opening and closing cannot be distinguished whether it is caused by artificial opening and closing or fault tripping, which adds a fault indication mechanism for small circuit breakers. function, when the circuit breaker changes from the closed state to the open state during use, you can judge whether the trip is a fault trip through the position of the indicator in the inspection window. After the fault is eliminated, just turn the circuit breaker Close it again, the indicator will automatically complete the switch from the alarm state to the initial state

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