LOW VOLTAGE APPARATUS ›› 2022, Vol. 0 ›› Issue (1): 35-39.doi: 10.16628/j.cnki.2095-8188.2022.01.007

• Electrical Design & Discussion • Previous Articles     Next Articles

Design and Research on Semi Controller of DC Circuit Breaker

SUN Guangtao, LI Shukun, JI Jianghui, WANG Xiaoli   

  1. XJ Group Corporation, Xuchang 461000, China
  • Received:2021-09-19 Online:2022-01-30 Published:2022-03-04

Abstract:

A semi controlled,modular design,high stability and low cost DC circuit breaker controlgear is developed based on the DC circuit breaker to meet the control requirement of 10 kV DC distribution network project.Firstly,the conrol circuit according to the control principle of current transfer DC circuit breaker,and the working principle and implementation schcme of DC circuit breaker controller are analyzed in detail.Secondly,taking PLC as the core controller of DC circuit breaker,the controller of DC circuit breaker is divided into four different control sub modules.The PLC rapid detection and control of DC circuit breaker is developed through the local photoelectric conversion and optical fiber.Finally,the platform test and type test show that the response time and full current cleaning time of the DC circuit breaker taking PLC as the controller can meet requirements.

Key words: DC circuit breaker, controlgear, PLC, DC distribution network

CLC Number: