Intelligent molded case circuit breaker and manipulation method

Abstract

The invention provides an intelligent molded case circuit breaker and a manipulation method. The intelligent molded case circuit breaker comprises an upper cover, a middle cover, an operating mechanism, a phase system, a base and an intelligent release; the intelligent release comprises a release cover, an intelligent release circuit board, a release base, a connection row, a power supply transformer, a measurement transformer, a magnetic flow unit and a release transfer reset unit. The intelligent molded case circuit breaker has the advantages as follows: (1) the circuit breaker has a doublebreak point structure, and through the design of a movable contact and a static contact in the phase system, the circuit breaker has the advantages of high closing reliability and high opening speed,thereby ensuring the use performance of the circuit breaker. (2) The opening and closing reliability of the circuit breaker is improved by the design of the intelligent release, comprising the designof the magnetic flow, a rocker, a reset member and a mechanism push rod and the like. (3) The intelligent release transformer adopts a double-coil structure, so that the current measurement accuracy is high, which is beneficial to realizing overcurrent release more accurately.

Description

technical field [0001] The invention belongs to the technical field of low-voltage circuit breaker design, and in particular relates to an intelligent molded case circuit breaker and an operating method. Background technique [0002] Circuit breakers will develop in the direction of "intelligent digitalization" in the future. With the planning of Industry 4.0 and intelligent manufacturing 2025, the trend of digitalization of circuit breakers will become more and more obvious, and with the continuous improvement of the power grid's requirements for the performance and functions of circuit breakers , the performance of the existing circuit breakers gradually cannot meet the market demand. Therefore, in view of the continuous changes in the market, it is necessary to develop new types of circuit breakers. Contents of the invention [0003] Aiming at the defects in the prior art, the present invention provides an intelligent molded case circuit breaker and an operating method,...

AI Technical Summary

Problems solved by technology

[0002] Circuit breakers will develop in the direction of "intelligent digitalization" in the future. With the planning of Industry 4.0 and intelligent manufacturing 2025, the trend of digitalization of circuit breakers will become more and more obvious, and with the continuous improvement of the power grid's requirements for the performance and functions of circuit breakers , the performance of existing circuit breakers cannot meet the market demand gradually. Therefore, in response to the continuous changes in the market, it is necessary to develop new types of circuit breakers

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