Research on 10kv Quick Vacuum Circuit Breaker with Double Opening and Closing Coils

2nd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Qin, Lijun^1 ; Jiang, Huating^1 ; Zhao, Xianqiu^1 ; Quan, Hongwei^2 ; Huang, Xiaoming^2 ; Liao, Tiansheng^2 ; Zhou, Jinde^2 ; Qiu, Dong^2 ; Ban, Yong^2

School of Electrical and Electronic Engineering, North China Electric Power University, Beijing

102206, China^1

Guangxi Water Resources and Electric Power Group Co. Ltd, Guangxi

530023, China^2

关键词: Development history;    Electromagnetic repulsion forces;    Equivalent calculations;    Mathematical analysis;    Metal disk;    Reliablity;    Vacuum circuit breaker;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/170/4/042125/pdf
DOI  :  10.1088/1755-1315/170/4/042125

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

This paper introduces the development history of vacuum circuit breakers. According to the low reliability of the vacuum circuit breakers with single opening and closing coil, this paper proposes a new type of 10kV quick vacuum circuit breaker with double opening and closing coils. This new type circuit breaker has two opening and closing coils, which together act on the metal disc of the circuit breaker to ensure the reliability. Then, the electromagnetic repulsion force of the metal disk is deduced using the equivalent calculation method. On this basis, mathematical analysis and calculation are performed on the electromagnetic repulsion of the circuit breaker's metal disc. Thereby the reliablity of the quick vacuum circuit breaker with double opening and closing coils is proved.