A device for real-time detection and control of circuit breaker tripping and its control method

Abstract

The invention relates to a real-time detection control circuit breaker tripping apparatus and a control method thereof. The apparatus comprises a circuit breaker body and a tripping mechanism. The circuit breaker body and the tripping mechanism are connected. Innovation points comprise that the tripping mechanism comprises a relay, a Darlington pipe and a DSP control chip; one end of the circuit breaker body is connected to one end of the DSP control chip successively through the relay and the Darlington pipe. By using the real-time detection control circuit breaker tripping apparatus and the control method thereof, the circuit breaker is connected to the DSP control chip through the relay and the Darlington pipe; the control chip is configured to execute circuit breaker control, which comprises that a circuit breaker state is determined; whether a direct current side current value is normal is detected; whether a circuit has a fault is detected and corresponding circuit breaker tripping processing is controlled. A circuit fault and a component damage caused by overcurrent are avoided and reliability of inverter operation is increased.

Description

technical field [0001] The invention relates to a device for real-time detection and control of circuit breaker tripping, and also relates to a control method for the device for real-time detection and control of circuit breaker tripping, which belongs to the field of tripping devices. Background technique [0002] Typically, circuit breakers are used to protect electrical circuitry from damage due to an overcurrent condition, such as an overload condition or a relatively high level short circuit or fault condition, by automatically interrupting the electrical circuitry. According to the tripping method, circuit breakers can be mainly classified into three types, namely: bimetal type, which achieves a tripping operation by being heated and bent in response to a continuous overcurrent state; The electromagnetic field formed on the coil attracts the iron core to operate; and the electronic type, which uses an electronic tripping device and a microprocessor. Among them, the ad...

AI Technical Summary

Problems solved by technology

Auxiliary tripping systems can be used for a variety of purposes, but are generally used to trip a circuit breaker faster than the primary tripping device of the circuit breaker, usually by tripping itself in the event of No tripping protection action will be performed, which reduces the reliability of circuit operation

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