Title :
Identification and separation of two concurrent partial discharge phenomena
Author :
Cacciari, M. ; Contin, A. ; Mazzanti, G. ; Montanari, G.C.
Author_Institution :
Parma Univ., Italy
Abstract :
The problem of identification and separation of two Partial Discharge (PD) phenomena simultaneously active has been investigated. Combined PD phenomena, caused by different PD mechanisms, are separated by means of a stochastic procedure based on the mixed Weibull function applied to pulse height distributions. The results are compared with those derived from PD measurements performed on the electrode configurations that produce a single PD mechanism at a time. It is shown that inference of Weibull function parameters can be useful for PD phenomena identification
Keywords :
Weibull distribution; corona; electrodes; insulation testing; partial discharges; stochastic processes; surface discharges; PD phenomena identification; Weibull function parameters; concurrent partial discharge phenomena; electrode configurations; mixed Weibull function; pulse height distributions; stochastic procedure; Corona; Dielectric measurements; Electrodes; Fault location; Insulation; Partial discharges; Performance evaluation; Stochastic processes; Surface discharges; Voltage;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1996., IEEE 1996 Annual Report of the Conference on
Conference_Location :
Millbrae, CA
Print_ISBN :
0-7803-3580-5
DOI :
10.1109/CEIDP.1996.564513
