PARTIAL DISCHARGE PART LOCATING METHOD OF THREE-PHASE BATCH GAS INSULATION EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To provide a partial discharge part locating method for surely locating a partial discharge part from specification of a partial discharge position of a gas section by three-phase batch gas insulation equipment.

SOLUTION: The partial discharge part locating method includes: arranging each three-phase conductor 2 in a metal vessel 1; detecting partial discharge signals by each detection sensor 5 provided in different gas sections 4 of the metal vessel 1 because of locating of the partial discharge part with the three-phase batch gas insulation equipment sealing an insulating gas in a plurality of the gas sections 4 divided airtightly by insulators 3 by supporting each conductor 2 by the insulators 3; and specifying the gas section 4 of a part discharged partly from the partial discharge signals of at least the two detection sensors 5. Next, the method includes: measuring detection intensity of each discharge signal detected with the detection sensor and an acoustic sensor 6 in the specified gas section 4; and locating a defect part based on the detection intensity of the discharge signal and the detection phase waveform of a three-phase voltage detected by the detection sensor 5 and the acoustic sensor 6.

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