Open AccessCharacteristic Analysis of Partial Discharge of Free Metal Particle in GIS
Author(s) -
Weidong Shi,
Zhuodong Yang,
H. X. Chen,
Zhiwei Lü,
D. Wang,
Weifeng Xin
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/354/1/012121
Subject(s) - partial discharge , particle (ecology) , environmental science , geology , engineering , electrical engineering , oceanography , voltage
Free metal particle is 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 metal particles, an independent sealed 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 pattern 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.