Statistical Analysis of Partial Discharge Phenomena - Time of Occurrence Distributions

Published

October 1, 1998

Author(s)

X. Han, N. Alan Heckert, James J. Filliben, Yicheng Wang

Abstract

This paper presents time-of-occurrence (phase) distributions of individual pulsating partial discharges (PDs) which occur in a point-dielectric gap in air for ac voltage conditions. It is determined that the pulse phase distribution is adequately modeled by a normal (Gaussian) distribution. Based on such best-fit normal distributions, estimated mean values of the phase and the standard deviations are given for the individual PD pulse distributions. For the alternating voltage case, the spread of time-of-occurrence distributions of succeeding pulses are universally broader than that of preceding pulses. PD pulse separations are non-uniform in phase. Further, if one assumes the usual sinusoidal waveform, then the voltage separation of PD pulses are also seen to be non-uniform.

Proceedings Title

Proc., IEEE Intl. Symp. on Electrical Insulation and Dielectric Phenomena (CEIDP)

Volume

II

Conference Dates

October 25-28, 1998

Conference Location

Atlanta, GA

Pub Type

Conferences

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Keywords

dielectric insulation, normal distribution, partial discharge, statistical analysis

Citation

Han, X. , Heckert, N. , Filliben, J. and Wang, Y. (1998), Statistical Analysis of Partial Discharge Phenomena - Time of Occurrence Distributions, Proc., IEEE Intl. Symp. on Electrical Insulation and Dielectric Phenomena (CEIDP), Atlanta, GA, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=13362 (Accessed October 10, 2025)