Determination of partial discharge time lag in void using physical model approach

Repetition of partial discharge (PD) activities within a dielectric insulation of high voltage equipment may lead to dielectric breakdown, eventually resulting in failure of the whole equipment. Thus, PD measurement is essential in high voltage insulation system. Modeling of PD activity may increase...

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Bibliographic Details
Published inIEEE transactions on dielectrics and electrical insulation Vol. 22; no. 1; pp. 463 - 471
Main Authors Illias, H. A., Tunio, M. A., Mokhlis, H., Chen, G., Bakar, A. H. A.
Format Journal Article
LanguageEnglish
Published New York IEEE 01.02.2015
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Conductivity
Electric fields
Finite element analysis
finite element methods
Insulation
Mathematical model
Partial discharges
Simulation
Time measurement
Voltage measurement
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Summary:Repetition of partial discharge (PD) activities within a dielectric insulation of high voltage equipment may lead to dielectric breakdown, eventually resulting in failure of the whole equipment. Thus, PD measurement is essential in high voltage insulation system. Modeling of PD activity may increase an understanding of PD phenomenon. One of the parameters which can be determined from PD modeling is the statistical time lag. In this work, a physical model of PD using finite element analysis (FEA) method has been developed to determine the relationship of statistical time lag with different applied stresses; these include different applied voltage, frequency and temperature. The statistical time lag as a function of different applied stresses was determined through comparison between measurement and simulation results. The proposed experimental-modeling approach may increase an understanding on the physical explanation about the statistical time lag.
ISSN:1070-9878
1558-4135
DOI:10.1109/TDEI.2014.004618