Title :
Gas integrity and adsorbent performance in an SF6 circuit breaker after test duty
Author :
Laverdure, C. ; Massé, M. ; Fréchette, M.F.
Author_Institution :
Cables et Isolants, Technologie et IREQ Hydro-Quebec, Que., Canada
Abstract :
A quality assessment of the SF6 insulating gas in a circuit breaker following test duty was performed. In addition, exploratory research was undertaken to characterize the performance of adsorbent materials in relation to by-product dynamics. Gas samples were analyzed and revealed decomposition up to 16%. The usual by-products were identified; SOF2 and SO2 had the highest concentrations. Thermal desorption of the contaminated molecular sieve was successfully achieved. The thermally desorbed gaseous products correlated with the usual SF6 by-products which resulted from arcing
Keywords :
SF6 insulation; arcs (electric); circuit breakers; desorption; dissociation; insulation testing; switchgear testing; SF6 circuit breaker; SF6 insulating gas; SO2; SOF2; adsorbent performance; arcing; by-product dynamics; contaminated molecular sieve; decomposition; gas integrity; quality assessment; test duty; thermal desorption; Chemical technology; Circuit breakers; Circuit testing; Dielectric materials; Dielectrics and electrical insulation; Displays; Filling; Molecular sieves; Solids; Thermal stability;
Conference_Titel :
Electrical Insulation and Dielectric Phenomena, 1993. Annual Report., Conference on
Conference_Location :
Pocono Manor, PA
Print_ISBN :
0-7803-0966-9
DOI :
10.1109/CEIDP.1993.378954
