Module for circuit breaker with current detection function

Abstract

The invention relates to a module for a circuit breaker with a current detection function. The module comprises a current transformer used for sampling a current value in a protection circuit in real time, a first electronic circuit for amplification, a second electronic circuit capable of conducting anti-interference restrain treatment, a central processor, a parameter adjustment and display circuit and an execution circuit, wherein the current transformer amplifies a sensed weak voltage signal through the first electronic circuit, then the weak voltage signal enters the second electronic circuit, the second electronic circuit inputs the signal subjected to anti-interference restrain treatment into the central processor, signal exchange is conducted between the central processor and the parameter adjustment and display circuit, and the central processor emits a signal to the parameter adjustment and display circuit and sends out an execution instruction signal to the execution circuit. The module can replace traditional current transformers and ampere meters to conduct current testing, can be installed in various electric power circuits needing current detection, and is high in universality; the structure can be unified, repeated work is reduced, and production cost is reduced; various displayed values and adjustment functions are realized.

Description

technical field [0001] The invention belongs to an intelligent module, in particular to a circuit breaker module with a current detection function. Background technique [0002] At present, the traditional current detection generally adopts the direct connection between the current transformer and the ammeter. The commonly used design method needs to match the current transformer and the ammeter to design, so the output signal of the current transformer is single, the ammeter display is simple, and the adjustment function is single. Contents of the invention [0003] In order to solve the technical problems in the known technology, the present invention provides a circuit breaker with current detection function capable of independently realizing the current detection function. [0004] The technical solution adopted by the present invention to solve the technical problems existing in the known technology is: it includes a current transformer for real-time sampling of the c...

AI Technical Summary

Problems solved by technology

[0002] At present, the traditional current detection generally adopts the direct connection between the current transformer and the ammeter. The commonly used design method needs to match the current transformer and the ammeter, so the output signal of the current transformer is single, the ammeter display is simple, and the adjustment function is single.

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