Study on a New Single Coil-Type Axial Magnetic Field Contact for High-Voltage Vacuum Interrupters

Author

Cheng, Shaoyong ; Xiu, Shixin ; Liu, Zhiyuan ; Wang, Jimei

Author_Institution

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

Volume

35

Issue

2

fYear

2007

fDate

4/1/2007 12:00:00 AM

Firstpage

425

Lastpage

433

Abstract

A new single coil-type axial magnetic field (AMF) contact for high-voltage vacuum interrupters is introduced. Its AMF characteristics were studied by a finite element method, taking the eddy current effect into account. Vacuum arc appearance of the new single coil-type AMF contact was observed by a high-speed charge-coupled device video camera. Capacitors and reactors (LC) discharging current interruption tests up to 45.0 kA were done with a single frequency LC oscillating circuit. Vacuum arc appearance of the single coil-type and slot-type AMF contacts was compared. The research results show that the new single coil-type AMF contact is more suitable for high-voltage vacuum interrupters than the slot-type AMF one

Keywords

eddy currents; finite element analysis; reactors (electric); vacuum arcs; vacuum interrupters; 45.0 kA; discharging current interruption; eddy current; finite element method; high-speed charge-coupled device video camera; high-voltage vacuum interrupters; single coil-type axial magnetic field contact; single frequency LC oscillating circuit; vacuum arc; Cameras; Capacitors; Circuit testing; Eddy currents; Finite element methods; Frequency; Inductors; Interrupters; Magnetic fields; Vacuum arcs; Axial magnetic field (AMF); single coil type; vacuum arc; vacuum interrupter;

fLanguage

English

Journal_Title

Plasma Science, IEEE Transactions on

Publisher

ieee

ISSN

0093-3813

Type

jour

DOI

10.1109/TPS.2007.893264

Filename

4154849