Identification and separation of multiple and concurrent partialdischarge phenomena

摘要

The problem of the identification and separation of multiplePartial Discharge phenomena simultaneously active within soliddielectrics is here investigated. Combined PD phenomena, caused bydifferent PD sources, are separated by means of a stochastic procedurederived from a statistical analysis performed on three-dimensional PDpattern. The results are compared with those derived from PDmeasurements performed on specimens producing a single PD phenomenon ata time. A comparison between the separated patterns coming from thecombined electrode configuration and the single source patterns has beenperformed using some statistical parameters