High-disjunction residual current operation circuit breaker

Abstract

The invention relates to a residual current operation circuit breaker. The residual current operation circuit breaker comprises a residual current controller and a one-P or multi-P circuit breaker spliced with the residual current controller, wherein the residual current controller comprises a base, an upper cover, a current transformer, an electronic component board, an electronic tripping device and an operating mechanism; a left accommodating space and a right accommodating space are formed in the base; the electronic component board, the electronic tripping device and the operating mechanism are arranged in the left end space of the base; the electronic component board is arranged on the upper left corner of the left end space of the base; the electronic tripping device is arranged at the lower end of the electronic component board; the operating mechanism is arranged on the right side of the left end space of the base; and one end of the operating mechanism is close to the right side of the electronic tripping device and the other end of the operating mechanism is arranged on the upper right corner of the left end space of the base. The base has a left end and a right end, so that the arrangement inside the residual current operation circuit breaker is simpler and clearer, the operating mechanism is arranged simply, running of all parts of the residual current operation circuit breaker is flexible and the operation is more reliable; therefore, the performance of the residual current operation circuit breaker is more stable.

Description

technical field [0001] The invention relates to a high breaking residual current operated circuit breaker. Background technique [0002] In household systems and industrial systems, residual current-operated circuit breakers are usually provided to prevent faults from causing danger to users and loads connected to the wires. The working principle of residual current-operated circuit breakers is that when the circuit is overloaded, short-circuited, or When the leakage of personal and equipment reaches the specified value, a zero-sequence current transformer sends a signal, which is processed by the circuit board to control the action of the electronic release, and pushes the drawbar mechanism, thereby driving the action of the circuit breaker operating mechanism, cutting off the circuit, and completing the operation of the circuit breaker. The breaking protection process, but the structure of the current residual current operated circuit breaker on the market is not ideal, th...

AI Technical Summary

Problems solved by technology

[0002] In household systems and industrial systems, residual current-operated circuit breakers are usually provided to prevent faults from causing danger to users and loads connected to the wires. The working principle of residual current-operated circuit breakers is that when the circuit is overloaded, short-circuited, or When the leakage of personal and equipment reaches the specified value, a zero-sequence current transformer sends a signal, which is processed by the circuit board to control the action of the electronic release, and pushes the drawbar mechanism, thereby driving the action of the circuit breaker operating mechanism, cutting off the circuit, and completing the operation of the circuit breaker. The breaking protection process, but the structure of the current residual current operated circuit breaker on the market is not ideal, the operating mechanism is complicated, and the stability and reliability are not high.

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