LOW VOLTAGE APPARATUS ›› 2022, Vol. 0 ›› Issue (8): 47-50.doi: 10.16628/j.cnki.2095-8188.2022.08.008

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Simulation Method of Permanent Magnet Circuit Breaker Closing Mechanical Characteristics

CHEN Jiaming   

  1. Shanghai Siyuan High Voltage Switchgear Co.,Ltd.,Shanghai 200120,China
  • Received:2022-01-28 Online:2022-08-30 Published:2022-10-11

Abstract:

The closing mechanical characteristics of permanent magnet circuit breakers are related to the important functions of the product.It is not only necessary to study the permanent magnet mechanism itself,but also to analyze the characteristics of the transmission structure.The simulation method of the closing mechanical characteristics of the permanent magnet circuit breaker is proposed.The displacement and force relationship of the transmission structure are obtained through the dynamic simulation.Then,the closing mechanical characteristics of the permanent magnet circuit breaker is obtained through the transient electromagnetic field simulation.Finally,according to the definition,the closing speed and time of the circuit breaker are calculated.The results are within a reasonable range,which can prove the rationality of the design of the circuit breaker's transmission structure and permanent magnet mechanism.

Key words: permanent magnet mechanism, mechanical characteristics, simulation, circuit breaker

CLC Number: