SF6 decomposition and fault type in SF6 gas insulated equipment

Verfasst von

X. Zhang, Ernst Gockenbach, C. Y. Wang, G. Song, X. L. Yan, Y. S. Ji, R. Yang, Z. X. Su, Q. Yao, H. L. Chen, G. Lu

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

Organisationseinheit(en): Fachgebiet Hochspannungstechnik und Asset Management (Schering-Institut)
Externe Organisation(en): 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
Typ: Aufsatz in Konferenzband
Seiten: 514-517
Anzahl der Seiten: 4
Publikationsdatum: 26.11.2012
Publikationsstatus: Veröffentlicht
Peer-reviewed: Ja
ASJC Scopus Sachgebiete: Elektrotechnik und Elektronik
Elektronische Version(en): https://doi.org/10.1109/ICHVE.2012.6357039 (Zugang: Geschlossen )