华电技术 ›› 2010, Vol. 32 ›› Issue (6): 44-46.

• 技术交流 • 上一篇    下一篇

500kV GIS断路器控制回路故障分析及处理

徐智,杨增杰   

  1. 华能景洪水电厂,云南景洪666100
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-06-25 发布日期:2010-06-25

Analysis on fault of control circuit of 500kV GIS breaker and treatment

XU Zhi, YANG Zengjie   

  1. Huaneng Jinghong Hydropower Station, Jinghong 666100, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-06-25 Published:2010-06-25

摘要: 华能景洪水电厂500kV GIS断路器投产前进行传动试验时,发现断路器合闸回路存在问题。简要分析了具有防跳装置的断路器操作机构与保护装置配合时产生的寄生回路及其危害性,比较了保护装置的防跳与机构内防跳作用的差异,提出了一种较为合理的改进方案,指出了二次回路中“防跳”功能的重要性。

关键词: 断路器, 控制回路, 保护, 防跳回路, 寄生回路

Abstract: In Huaneng Jinghong Hydropower Station, during the transmission test of the 500kV GIS breaker before it was put into operation, it was found that there were some problems existed in closing circuit of the breaker. The parasitic circuit, which was caused in match of the operation mechanism of the breaker with antijump device and the protection device, and its hazards were analyzed briefly. The antijump function of the protection device and the internal antijump function of the operation mechanism were compared. A more rational improvement scheme was put forward, and the importance of the antijump function in the secondary circuit was pointed out.

Key words: breaker, control circuit, protection, anti-jump circuit, parasitic circuit