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| Analysis and Revelation from Trip of a 110kV Incoming Protection |
| Lu Xiaotong, Hua Xiang, Cheng Shanwu |
| Baosteel Engineering & Technology Group Co., Ltd, Shanghai 201999 |
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Abstract This paper carefully analyzes the cause of protected trip through a obstacle of a 110kV incoming system, according to accident processing and action on the protection, and found wrong secondary wiring of B bus GPT are the cause of the accident. When three - phase and four - wire system has asymmetrical load, the concept and formula about the deviation of voltage at neutral point are given, the revelation from the accident are put forward.
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Received: 26 June 2014
Published: 23 January 2014
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| Cite this article: |
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Lu Xiaotong,Hua Xiang,Cheng Shanwu. Analysis and Revelation from Trip of a 110kV Incoming Protection[J]. Electrical Engineering, 2013, 14(11): 91-91.
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| URL: |
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http://dqjs.cesmedia.cn/EN/Y2013/V14/I11/91
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| [1] GB/T 14285-2006 继电保护和安全自动装置技术规程[S]. |
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2013, Vol. 14 
