Study on the Insulating Spacers Surface Discharge of GIS

Yun Peng Liu; Zi Jian Wang; Yan Song Li

doi:10.4028/www.scientific.net/AMM.385-386.1209

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 385-386Study on the Insulating Spacers Surface Discharge...

Study on the Insulating Spacers Surface Discharge of GIS

Abstract:

Gas insulated switchgears occupy an important position in the power system.Insulating spacers are important parts in GIS, a research on the surface discharge characteristics is conducted, mainly using ultraviolet imaging technology, ultrasonic testing technology and pulse current method to test the whole discharge process. Based on the data analysis, get the following conclusion: 1) Ultraviolet photons indicator shows the "saturation" characteristic, when the voltage up to 68kV later, continue to increase the voltage, ultraviolet photon number increase is not obvious; 2) In the basin insulator defect, with discharge intensifies, charged particle collision more intense, the heat increase, so the local volume rapid expansion, the pressure increase lead to enhance the ultrasonic signal. These works provide a valuable reference for follow-up study of GIS.

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Periodical:

Applied Mechanics and Materials (Volumes 385-386)

Pages:

1209-1212

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.385-386.1209

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Online since:

August 2013

Authors:

Yun Peng Liu, Zi Jian Wang, Yan Song Li

Keywords:

Gas Insulated Switchgear (GIS), Insulating Spacers, Partial Discharge (PD), Ultrasonic Testing Technology, Ultraviolet Imaging Technology

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