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.

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)