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《AUTOMATION OF ELECTRIC POWER SYSTEMS》 2000-07
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STUDY ON LINE PROTECTION SETTING PROGRAMFOR POWER SYSTEM ZERO-SEQUENCE CURRENT

Wang Guangxue, Peng Feng, Feng Ling, Wang YOuhuai(Hubei Electric Power Dispatching & Telecommunication Bureau, Wuhan 430077. China)  
A line protection setting program for power system zero--sequence current is developed in which several problemsare solved: the calculation 'method for changing operating mode by modifying impedance matrix, the analysis of zero-sequencemutual coupling of lines, zero-sequence analysis in the course of non--three-phase operation and the calculation for protectionrange of zero-sequence current.
【CateGory Index】: TM77
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