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Partial discharge location in power transformers using the spectra of the terminal current signals

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3 Author(s)
Wang, Z.D. ; Dept. of Electr. Eng. & Electron., Univ. of Manchester Inst. of Sci. & Technol., UK ; Crossley, P.A. ; Cornick, K.J.

Partial discharges (PDs) are a major source of insulation failure in a power transformer. The accurate location of the discharge is of crucial importance in on-site maintenance and repair. For power transformers operating at 132 kV and below and having a continuous disc type winding construction, a novel approach for PD location, based on a study of how PDs propagate in a transformer winding, is presented. Experimental tests are used to show that the PD source can be located using information available in the current signals measured at the transformer terminals

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High Voltage Engineering, 1999. Eleventh International Symposium on (Conf. Publ. No. 467)  (Volume:5 )

Date of Conference: