Study on 12 kV outdoor vacuum switch with replaceable HRC element drop out fuse

Author

Jimei, Wang

Author_Institution

Dept. of Electr. Eng., Xi´´an Jiaotong Univ., China

Volume

2

fYear

1996

fDate

21-26 Jul 1996

Firstpage

1070

Abstract

A new type of vacuum interrupter for a 12 kV outdoor vacuum switch was experimentally studied, the envelope of which was made of porcelain with a petticoat flange for outdoor insulation. In order to produce an axial magnetic field and improve the capacity of transfer current in the vacuum interrupter, an iron plate, of a horse-shoe construction design, was chosen as an electrode. The drop-out fuse with a replaceable sand-filled HRC element in series with the vacuum switch is a new design concept to increase breaking capacity. This design form yields a vacuum switch and drop-out type combination fuse

Keywords

ceramic insulation; design engineering; electric fuses; magnetic fields; switchgear testing; vacuum interrupters; 12 kV; axial magnetic field; breaking capacity; drop-out fuse; horse-shoe iron plate electrode; outdoor insulation; outdoor vacuum switch; petticoat flange; porcelain envelope; replaceable sand-filled HRC element; transfer current capacity; vacuum interrupter; Dielectrics and electrical insulation; Electrodes; Fuses; Interrupters; Iron; Magnetic fields; Porcelain; Steel; Switches; Testing;

fLanguage

English

Publisher

ieee

Conference_Titel

Discharges and Electrical Insulation in Vacuum, 1996. Proceedings. ISDEIV., XVIIth International Symposium on

Conference_Location

Berkeley, CA

Print_ISBN

0-7803-2906-6

Type

conf

DOI

10.1109/DEIV.1996.545529

Filename

545529