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《Journal of Electric Power Science and Technology》 2012-03
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Influence of sympathetic current on transformer differential protection with inner bridge connection

DU Ji-wei1,CHEN Jun2(1.Suining Breach of Sichuan Power Electric Corporation,Suining 629000,China; 2.Dispatching Centre of Sichuan Power Electric Corporation,Chengdu 610041,China)  
The mechanism of transformer sympathetic interaction with parallel connection is analyzed in this paper.The substation internal bridge connection and current transformer secondary connection are introduced.The effect of the magnetizing inrush current on transformer different protection is discussed,and the influence of sympathetic current on the different protection is also investigated in detail with the saturation characteristics of current transformer,the brake principle of differential protection and the load of transformer considering.At last,some measures have been put forward to improve the differential protection performance.
【CateGory Index】: TM772
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【Citations】
Chinese Journal Full-text Database 3 Hits
1 DU Ji-wei(Suining Branch,Sichuan Power Electric Corporation,Suining 629000,China);Simulation Research of Factors to Influence Transformer Sympathetic Inrush Current[J];Transformer;2008-01
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【Co-citations】
Chinese Journal Full-text Database 10 Hits
1 CHU Xiao-rui1,JING Hai-bing2,HU Xiao-hang2(1.Xichang College,Xichang 615013,China;2.Xihua University,Chengdu 610039,China);Comparative Analysis of Inrush Currents of Transformer[J];Transformer;2011-03
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