Title :
A kind of magnetic shield for vacuum interrupters
Author :
Jia Shenli ; Yan Jing ; Wang Jimei
Author_Institution :
Dept. of Electr. Eng., Xi´an Jiaotong Univ.
Abstract :
The effect of the external magnetic field mainly generated by external connecting buses on the vacuum arc is studied in this paper. This magnetic field which crosses to the vacuum arc will make the arc move out of the electrodes gap, and reduce the interrupting ability of vacuum interrupters. A kind of magnetic shield which can prevent the vacuum arc from being affected by the external magnetic field is developed in this paper. The experimental results show this magnetic shield could improve the interrupting performance of vacuum interrupters effectively
Keywords :
circuit-breaking arcs; electrodes; magnetic fields; magnetic shielding; switchgear testing; vacuum arcs; vacuum breakdown; vacuum interrupters; electrodes gap; external connecting buses; external magnetic field; interrupting ability; interrupting performance; magnetic shield; vacuum arc; vacuum interrupters; Circuit breakers; Electrodes; Interrupters; Iron; Joining processes; Magnetic circuits; Magnetic fields; Magnetic shielding; Vacuum arcs; Voltage;
Conference_Titel :
Discharges and Electrical Insulation in Vacuum, 1998. Proceedings ISDEIV. XVIIIth International Symposium on
Conference_Location :
Eindhoven
Print_ISBN :
0-7803-3953-3
DOI :
10.1109/DEIV.1998.738641
