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《AUTOMATION OF ELECTRIC POWER SYSTEMS》 1995-04
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A NEW PRINCIPLE OF DISCRIMINATION BETWEEN POWER SWING AND SHORT CIRCUIT

Kong Fanpeng,Ge Yaozhong,Zhou Qinwu(Xi′an Jiaotong University)  
This paper introduces a new principle to discriminate power swing from short circuiton transmission line. The principle is based on calculating the changing pattern of the faultcomponent of phase current.In order to test the protective behaviour of the fault detector in timeof power swing and in time of fault happening during power swing,a new power swing digitalmodel is used in this paper. The new principle can clearly discriminate power swing and fault(including fault happening during power swing).
【CateGory Index】: TM711
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