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| The analysis of three-terminal line protection act trip caused by multiple earthing of CT |
| Liu Huibin, Miao Mao |
| Shanxi Province Yellow River Wanjiazhai Water Affairs Group Co., Ltd, Taiyuan 030012 |
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Abstract A two-point earthing of CT secondary circuit could provide a complete circuit for a external power source.The current in this circuit depends on voltage and resistance between the two earthing points. Based on a trip event happened in Yellow River Diversion Project pump station, this article has given the back ground information, analysis and modeling, to testify the assumption of the cause of trip event. It would be a good example for field engineers to deepen their knowledge of multiple earthing.
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Received: 25 July 2017
Published: 22 January 2018
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| Cite this article: |
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Liu Huibin,Miao Mao. The analysis of three-terminal line protection act trip caused by multiple earthing of CT[J]. Electrical Engineering, 2018, 19(1): 114-116.
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http://dqjs.cesmedia.cn/EN/Y2018/V19/I1/114
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2018, Vol. 19 
