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    					| The Analysis of Theimmovability of Protective Devices due to the Installation Technology of Zero-sequence Current Transformer |  
						| Shan Guodong |  
						| Liuzhou Power Supply Bureau of Guangxi Power Grid Corporation, Liuzhou, Guangxi 545000 |  
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													    | Abstract  Connecting with an over-grade trip accident of 10kV line due to the installation technology of zero-sequence current transformer, this paper analyses the characteristics of current transfer and the influence to the microcomputer protection devices under the situations of unqualified installation of zero-sequence current transformer, combined with the accident situation such measures are put forward. |  
															| Published: 20 September 2017 |  |  |  |  
														
															| Cite this article: |  
															| Shan Guodong. The Analysis of Theimmovability of Protective Devices due to the Installation Technology of Zero-sequence Current Transformer[J]. Electrical Engineering, 2017, 18(9): 85-88. |  |  |  
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															| URL: |  
															| https://dqjs.cesmedia.cn/EN/Y2017/V18/I9/85 |  
													
																												  
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