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《Proceedings of the Csee》 2000-08
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A NEW DOUBLE TERMINAL METHOD OF TRAVELLING WAVE FAULT LOCATION USING WAVELET TRANSFORM

QIN Jian 1,CHEN Xiang xun 1, ZHENG Jian chao 1, WU Cheng qi 2 (1.Electric Power Research Institute China,Beijing 100085,China; 2.Chinese Dongbei Electric Group Corporation,Shenyang 110006,China)  
This paper presents a new double terminal method of travelling wave fault location, here the arrival time of travelling wave is defined by an optimal characteristic point of travelling wave extracted by a suitable CWT, and the propagation velocity is related to the physical configuration and parameters of the line and the dilation parameter. Based on the method two feasible travelling wave fault location schemes are introduced. A large amount of simulation results and field short circuit test results show that the new method is accurate and reliable, and it can meet the accurate fault location requirement.
【CateGory Index】: TM76
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