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电路引用Partial discharges their mechanism,detection and measurement.pdf

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IEEE Transactionson Dielectrics and Electrical Insulation Vol.9 No. 5,OctoberZOOZ 763 Partial Discharges Their Mechanism, Detection and Measurement R. Bartnikas lnatitut de Recherche dKydroQuehec, Varennes,Quebec, Canada ABSTRACT Different partial discharge (PD) detection and measurement procedures suitable for use on ca- bles, capacitors, transformers and rotating machines are examined and compared. Both narrow and wide bandwidth PD detectors are considered; particular attention is given in regard to their suitability to different types of electrical apparatus and cable specimens under test as well as their applicability to discharge site location and their capability to detect different forms of PD. A rather substantial portion of the discussion is devoted to the use of intelligent machines as applied to PD pattem recognition in terms of either PD pulse-heightldischarge epoch (phase) distributions or discharge pulse shape attributes. 1 INTRODUCTION pling and resonance effectsbetween the windings. Similar interpreta- tional and calibration difficultiesare encountered also with rotating ma- HE subject of PD or corona discharges, which represents an an- Ttecedent term that has been commonly appli