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《Large Electric Machine and Hydraulic Turbine》 2006-02
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The Study of On-line Checking Methods Based on Wavelet Noise Elimination Method of Interturn Short-circuit in Turbogenerator Rotor

LIU Qing-he(Harbin Electric Machinery Company Limited,Harbin 150040,China)  
In this paper,a wavelet noise elimination method is applied to fault diagnosis of interturn short-circuit in turbogenerator rotor windings.While the generator is operation with load,EMF signals on detecting coil are treated with noise elimination by using wavelet analysis method and combining all signals characteristics and frequency scopes of it.Practical examples have shown that this method is effective to realize noise elimination and applicable to on-line checking for interturn short-circuit in turbogenerator rotor windings.
【CateGory Index】: TM311
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