SF6 decomposition and fault type in SF6 gas insulated equipment
Abstract
In the presence of arc, partial discharge and thermal discharge, SF 6 decomposes into a wide variety of active products which possess different chemical properties. This paper reports on research in SF6 decomposition relating to the ageing- and fault problems of the insulating materials in the gas-insulated equipment. Under the guidance of detection technology, the decomposition mechanism and the decomposed constituent of SF6 are analysed. The qualitative and quantitative determinations of the by-products are studied according to various modes of electrical discharges. In particular, the influence of discharge energies and impurities on the formation of the dominant stable by-products is discussed. According to the characteristic products, the internal fault inside gas insulated switchgear can be determined for fault diagnosis of SF6 equipment.
Details
- Organisation(s)
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High Voltage Engineering and Asset Management Section (Schering Institute)
- External Organisation(s)
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China Electric Power Research Institute
Shannxi Electric Power Research Institute
State Grid Anhui Electric Power Co
State Grid Chongqing Power Company
Heilongjiang Electric Power Research Institute
- Type
- Conference contribution
- Pages
- 514-517
- No. of pages
- 4
- Publication date
- 26.11.2012
- Publication status
- Published
- Peer reviewed
- Yes
- ASJC Scopus subject areas
- Electrical and Electronic Engineering
- Electronic version(s)
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https://doi.org/10.1109/ICHVE.2012.6357039 (Access:
Closed
)
