| 500kV变压器比率差动保护原理及试验方法的研究 |
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| 引用本文： | 杨洪,王海滨,郑晓波.500kV变压器比率差动保护原理及试验方法的研究[J].西华大学学报(自然科学版),2011,30(2):39-42. |
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| 作者姓名： | 杨洪 王海滨 郑晓波 |
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| 作者单位： | 1. 西华大学电气信息学院,四川成都,610039
2. 四川电力送变电建设公司调整试验所,四川成都,610051 |
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| 摘 要： | 分析了变压器微机差动保护原理,并以500kV Y0/Y0/△-11型三绕组变压器和南瑞RCS978变压器微机保护为例阐述了变压器主变差动保护试验方法,提出了一种验证变压器微机保护比率差动曲线及拐点的思路及方法。
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| 关 键 词： | 三绕组变压器 比率差动 试验方法 |
Study on Differential Protection Principle of Ratio Braking Style for 500kV Transformer and Its Testing Method |
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| YANG Hong,WANG Hai-bin,ZHENG Xiao-bo.Study on Differential Protection Principle of Ratio Braking Style for 500kV Transformer and Its Testing Method[J].Journal of Xihua University:Natural Science Edition,2011,30(2):39-42. |
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| Authors: | YANG Hong WANG Hai-bin ZHENG Xiao-bo |
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| Affiliation: | 1.School of Electrical and Information Engineering,Xihua University,Chengdu 610039 China; 2.Sichuan Electric Power Transmission and Transformation Distribution Construction Company,Chengdu 610051 China) |
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| Abstract: | This paper analyses the differential protection principles of transformer,uses the 500 kV Y0/Y0/△-11 three-winding transformer and NARI’S RCS978 sets as an example to illustrate the testing steps,and puts forward a testing method to test the ratio-differential relaying and its inflexions. |
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| Keywords: | three-winding transformer ratio-differential testing method |
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