Research on sympathetic interaction between transformers

被引：5
|
作者：
Shao, Dejun [1 ]
Yin, Xianggen [1 ]
Zhang, Zhe [1 ]
Chen, Deshu [1 ]
Zhang, Kanjun [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Dept Elect Engn, Elect Power Secur & High Efficiency Lab, Wuhan 430074, Hubei, Peoples R China
来源：
2007 42ND INTERNATIONAL UNIVERSITIES POWER ENGINEERING CONFERENCE, VOLS 1-3 | 2007年
关键词：
transformer differential protection; magnetizing inrush; sympathetic interaction;
D O I：
10.1109/UPEC.2007.4468959
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The phenomenon of sympathetic interaction between transformers is discussed in this paper. A mathematical model is developed for two transformers in parallel and In series operation to analyze the origin mechanism of sympathetic interaction. At the same time, its characteristics are further analyzed by numerical simulation, The sympathetic inrush current could influence the transformer differential protection. The physical dynamic simulation experiment results are analyzed, which prove the second harmonic restrain method could restrain the sympathetic inrush and the CT saturation criterion should be used for the differential protection.
引用
收藏
页码：273 / 276
页数：4
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