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| Discovery and Principle Analysis of the Grounding Fault of Secondary Circuit of A 220kV Line CVT |
| Ma Zhenshuo, Zhang Jinxiang, Luo Lishi, Xia Yansong, Chen Xiwen |
| Maintenance Company of State Grid Jibei Electric Power Company Limited, Beijing 102488 |
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Abstract According to a case of maintenance and test after the outage of a 200kV line CVT, by using principle analysis, discovery and settlement of the fault of no grounding point is made when the secondary circuit switch-disconnector is broken. It is important to check up the grounding of the secondary circuit of the CVT which is either in acceptance or outage stage for maintenance. The measures to check up the grounding of the secondary circuit of the CVT are concluded in this paper.
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Received: 22 September 2016
Published: 22 September 2016
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| Cite this article: |
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Ma Zhenshuo,Zhang Jinxiang,Luo Lishi等. Discovery and Principle Analysis of the Grounding Fault of Secondary Circuit of A 220kV Line CVT[J]. Electrical Engineering, 2016, 17(9): 132-134.
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| URL: |
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http://dqjs.cesmedia.cn/EN/Y2016/V17/I9/132
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[1] 陈化钢. 电力设备预防性试验方法及诊断技术[M]. 北京: 中国科学技术出版社, 2001.
[2] 骆明川. 一起220kV母线CVT缺陷分析及预防措施[J]. 电工技术, 2010(3): 43, 54.
[3] 张金祥, 黄德顺. 浅析电容式电压互感器二次电压偏高现象[J]. 高电压技术, 2006, 32(1): 115-116.
[4] DL/T 474.5—2006. 现场绝缘试验实施导则. 介质损耗因数tan δ 试验. 中华人民共和国国家发展和改革委员会发布
[5] 倪学锋, 盛国钊, 林浩. CVT使用中应注意的几个问题[J]. 高电压技术, 2002, 28(4): 18-20.
[6] 康建军. 一起电容式电压互感器误接线引起的保护误动的分析及防范措施[J]. 科技信息, 2009(29): 1031-1032. |
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2016, Vol. 17 
