SF6 DECOMPOSITION UNDER POWER ARCS - CHEMICAL ASPECTS

被引:50
作者
BELMADANI, B [1 ]
CASANOVAS, J [1 ]
CASANOVAS, AM [1 ]
机构
[1] UNIV TOULOUSE 3,FAC PHARM,BIOPHYS & BIOMATH LAB,F-31062 TOULOUSE,FRANCE
来源
IEEE TRANSACTIONS ON ELECTRICAL INSULATION | 1991年 / 26卷 / 06期
关键词
D O I
10.1109/14.108156
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
In order to define the origin and the production rate of the CF4 formed under the effect of arcing in circuit breakers containing SF6 as gaseous insulator, a series of measurements was carried out in two Alsthom circuit breakers in which the gaseous insulator (SF6, N2), the material from which the nozzle is made (PTFE + CaF2, pure PTFE, PPS Ryton R4) and the electrode metal (Cu/W alloy, copper) was changed. Moreover, with the aim of refining the results concerning the influence of the chemical composition of the insulator used to make the nozzle, a large series of insulators (Megelite, PPS Ryton R4, Kel'F, Teflon, polypropylene and nylon) were exposed to sparking in an SF6 atmosphere.
引用
收藏
页码:1177 / 1189
页数:13
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