Modeling the auxiliary switch of a high-voltage SF6 circuit breaker

摘要：

The close-open time of extra-high voltage circuit breaker reclosing is an important parameter to ensure the second contact separation breaking capacity of Close-Open operation. According to statistics, the average close-open time of existing extra-high voltage SF6 breakers is about 23~35ms, which is less than the standard time 50ms. The close and open commands are issued by auxiliary switch equipped by the operating mechanism, so the auxiliary switch is an ideal and reliable mechanism to control the closeopen time. Based on theoretical mechanics and system dynamics, this paper proposes a close-open time control method using auxiliary switch, then establishes a mathematical model describing operation characteristics of auxiliary switch and optimizes its parameters. At last, the research results are verified by experiments.

作者: Lijun Jin Jiangang Liu Wenhao Zhang Shujia Yan Junyou Chen

作者单位: Tongji University, Shanghai 201804, China Ningbo Yaohua Electric Factory, Cixi 315324, China

会议类型: 国际会议

会议名称: 2011 1st International Conference on Electric Power Equipment-Switching Technology(第一届电力设备开断技术国际会议 ICEPE)

会议地点: 西安

会议语种:英文

页码: 48-51

在线出版日期: 2011-10-23（万方平台首次上网日期，不代表论文的发表时间）