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《High Voltage Apparatus》 2015-01
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Analysis and Review on Reactor Latent Fault characteristics and Its Coupling Parameter

LIN Ruicong;MIAO Xiren;GUO Moufa;CHEN Dan;LIN Feng;College of Electrical Engineering and Automation,Fuzhou University;Power Maintenance Branch of Fujian Electric Power Company Limited;  
With elevation in shunt reactor's capacity and voltage level,its latent faults tend to increase.In this paper,the characteristics and limitations of the existing measurement techniques for insulation level,temperature rise,and vibration signal are analyzed.And the coupling relationship of the vibration signal to the shunt reactor's insulation level and temperature rise is expounded to draw a conclusion that the vibration signal can reflect various faults of a shunt reactor.Moreover,key technological issue for latent faults detection of shunt reactor based on vibration method is put forward to be solved.Based on the application of vibration sensor array to detecting the vibration signal of a large-scale shunt reactor,the effect of vibration propagation characteristics on fault diagnosis and location is discussed.It is concluded that the fault diagnosis and location with the latent fault features and its coupling parameters are applicable to practical engineering for condition-based maintenance of shunt reactors.
【CateGory Index】: TM47
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