HIGH-VOLTAGE FUSE BEHAVIOR WITH VARISTOR COMMUTATION

被引：4
|
作者：
WOLNY, A [1 ]
STOKES, AD [1 ]
KACPRZAK, B [1 ]
机构：
[1] GDANSK TECH UNIV,DEPT ELECT ENGN,GDANSK,POLAND
来源：
IEE PROCEEDINGS-GENERATION TRANSMISSION AND DISTRIBUTION | 1994年 / 141卷 / 01期
关键词：
COMMUTATION; FUSE-VARISTOR COMBINATION; SURGE ARRESTORS;
D O I：
10.1049/ip-gtd:19949777
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：
Expulsion fuse operation using parallel connected ZnO varistors for current commutation offers new protection opportunities for this simple switching element. The advantages of low cost and full-range protection can be retained with the addition of current limitation and hence almost unlimited breaking capacity. Pad-mounted and cubicle applications may also be possible. The relations among varistor voltage, fuse element cross-section, fault current, circuit conditions and energy dissipated during current breaking operation have been analysed. It has been found that maximum energy dissipated by a fuse-varistor arrangement depends on the fuse element cross-section and the varistor voltage; these two parameters play crucial roles in fuse dimensioning.
引用
收藏
页码：33 / 37
页数：5
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