GIS交流耐压试验盆式绝缘子闪络的原因及防范措施

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Abstract Under the influence of unfavorable factors such as transportation, installation environment and installation process, GIS occasionally occurs insulation failure in the final AC withstand test, analyses the factors and precautions of various aspects of the installation process, which can reduce or avoid the emergence of basin insulation in the AC resistance test due to the influence of GIS installation. The accident of the son's flashover. In this paper, a case of a flashover accident on the surface of a basin insulator in a substation of 110kV, Xiamen, in the GIS AC voltage withstand test, is discussed in this paper, through the study of the test process, the finding of the fault point, the disintegration inspection of the site, the field treatment and so on, and according to the existing relevant professional standards and standards. The reasons for the flashover of the insulator in the process of GIS installation and debugging are analyzed, and the preventive measures for the GIS installation process are summarized, which provides a reference for the GIS installation process in the later substation.

Key words： GIS basin insulator flashover reasons and measures

Received: 10 May 2018 Published: 23 October 2018

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Cite this article:

Li Jinhui. Causes and preventive measures for flashover of GIS AC withstand voltage test basin insulator[J]. Electrical Engineering, 2018, 19(9): 119-121.

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http://dqjs.cesmedia.cn/EN/Y2018/V19/I9/119