SHI Wen, YANG Zhengli, CHEN Haixia, et al. Characteristic Analysis of Partial Discharge Signals of Free Metal Particle Defects in GIS[J]. High voltageapparatus, 2020, 56(11): 139-144.
SHI Wen, YANG Zhengli, CHEN Haixia, et al. Characteristic Analysis of Partial Discharge Signals of Free Metal Particle Defects in GIS[J]. High voltageapparatus, 2020, 56(11): 139-144. DOI: 10.13296/j.1001-1609.hva.2020.11.022.
Free metal particles are one of the main defects affecting the safe and stable operation of GIS equipment.In order to further analyze the characteristics of partial discharge produced by them
an independent sealing test model which can simulate real defects is designed in this paper.By adjusting applied voltage
particle size and number of particles
PRPD and n-φ spectra of partial discharge caused by particle defects are characterized.Analysis of the causes of formation of features
especially in the light of particle motion patterns
the transfer and neutralization of charges carried by particles at various stages are elaborated
which provides a reference for the follow-up research and field detection work.