Severity diagnosis and assessment of the partial discharge provoked by protrusion in GIS

It is a common partial discharge phenomenon that is provoked by metal spikes on the surface of the high voltage bus bar of the GIS (Gas Insulated Switchgear). To measure the partial discharge based on UHF(Ultra High Frequency) under frequency voltage is also a very common field test project. In orde...

Full description

Saved in:
Bibliographic Details
Published in2016 International Conference on Condition Monitoring and Diagnosis (CMD) pp. 690 - 692
Main Authors Li Yuan, Liu Zehui, Qu Quanlei, Yu Xinlong, Peng Jie, Li Junhao
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.09.2016
Subjects
Couplings
diagnosis and assessment
Discharges (electric)
GIS
Insulation
Partial discharges
protrusion
Reliability
severity
Online AccessGet full text

Cover

More Information
Summary:It is a common partial discharge phenomenon that is provoked by metal spikes on the surface of the high voltage bus bar of the GIS (Gas Insulated Switchgear). To measure the partial discharge based on UHF(Ultra High Frequency) under frequency voltage is also a very common field test project. In order to diagnose and assess the severity levels of the PD (partial discharge) provoked by metal spikes on the surface of the high voltage bus bar of the GIS, with the application of gradually increased voltage, long-term tests were conducted on a well-established 363 kV GIS experiment platform to observe the entire evolution process of PD from its very initiation till breakdown. And this paper also captures the PRPD and PRPS spectrograms during the tests from initial stage to breakdown stage. The results of this paper provide an effective rule to diagnose and assess the severity levels of the PD provoked by metal spikes on the surface of the high voltage bus bar of the GIS.
DOI:10.1109/CMD.2016.7757916