Study of the Effect of Dust Storm on Disconnecting Switch Operation Reliability for EHV Power Grid in Inner Mongolia
(0) This paper mainly presents typical solutions to disconnecting switch overheating and mechanical problems of power grid in Extra High Voltage (EHV). Many faults have happened in the EHV power grid due to overheating and mechanical problems of disconnecting switches in Inner Mongolia, China within recent years. Dust storm weather and the special structure are main reasons which induced disconnecting switch lower operation reliability. For the overheating problems, the solutions include using conducting metal belt, replacing material of knee-arm wheel and modifying the structure of rolling-contact assembly; as to the mechanical problems, the solutions include using dust shield, renovating operating mechanism and decreasing mechanically-driven part. In addition, we give other related suggestions to the design and application of disconnecting switches in Inner Mongolia as well as the Northwestern China where there is similar dust storm weather.
disconnecting switch mechanical factors power system reliability power systems power system faults environmental factors
Yonggang Yue Feng Huo Yaping Wang Yongjun Wang Tao Ye Dawei Dang Molin Zhao Zhiqiang Bai
Inner Mongolia Extral High Voltage Power Supply Bureau, District Jinchuan, Huhehaote, P.R.C
国际会议
The International Conference on Electrical Engineering 2009(2009 电机工程国际会议)
沈阳
英文
1-4
2009-07-05（万方平台首次上网日期，不代表论文的发表时间）