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《Proceedings of The Csu-epsa》 2003-04
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THE APPLICATION OF WAVELET TRANSFORM IN FINDING FAULT FEEDER OF EARTH FAULT IN RESONANT GROUNDED SYSTEM

Yu Xiaorong,Liao Peijin,Peng Shutao,Li Lin (Xi'an jiaotong university, Xi'an 710049, China)  
This paper introduced a method of finding the fault feeder by contrasting transient zero sequence currents.For different Petersen coil protected power networks using high frequency calculated by Prony method would take advantage of the transient signals more effectively.Wavelet package is used to decompose this transient signals with appreciate frequency width.The results simulated by EMTP show that this method can find the fault feeder accurately.
【CateGory Index】: TM862
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