Abstract

Partial Discharge (PD) is the localized breakdown which does not completely bridge the gap between the electrodes. PD is the major cause of insulation degradation and eventually leads towards breakdown of the high voltage insulation system. Ionization of gas (medium) is the phenomena which occur inside the voids in dielectrics during the discharge. This paper makes an attempt to understand the PD measurements using the dynamics of particles involved for the PDs occurring inside the void in a dielectric. The particle in cell code is used for the same. An experiment is performed to measure void discharge using the LDS6 PD detector and Phase Resolved PD (PRPD) patterns are obtained. An attempt has been made to correlate the experimental results with the results obtained from the PIC simulation of void discharge.

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