Abstract:

The vacuum interrupter is very important for the performance of vacuum circuit breakers.An electric field mathematical model of the vacuum interrupter is built using Ansoft Maxwell software and analyzed by the finite element analysis-method to study the electric field distribution inside vacuum interrupter.Ansoft Maxwell simulation results show that the shield of vacuum interrupter has great influence on electric field distribution.

Key words: vacuum interrupter;electric field;shield of vacuum interrupter;Ansys Maxwell simulation