Title :
Recent technical developments in high-voltage and high-power vacuum circuit breakers
Author :
Yanabu, Satoru ; Tsutsumi, Tadahito ; Yokokura, Kunio ; Kaneko, Eiji
Author_Institution :
Toshiba Corp., Kawasaki, Japan
fDate :
10/1/1989 12:00:00 AM
Abstract :
Explanations are given regarding recent technical topics in the development of vacuum circuit breakers. The area-effect concept is introduced to aid in insulation designs of vacuum interrupters. By using Cu-Cr prepared through a special method, the voltage performance of vacuum interrupters has been remarkably improved. Through the development of axial magnetic field electrodes, large-current interruption has been made possible. The design concept for determining contact radii has been established. A computer simulation method for generating switching overvoltage is described, thereby indicating the possibility of realizing large-current interrupting vacuum interrupters with low switching overvoltages
Keywords :
circuit breakers; digital simulation; overvoltage; power engineering computing; switching; vacuum apparatus; Cu-Cr; area-effect concept; axial magnetic field electrodes; computer simulation method; contact radii; high-power vacuum circuit breakers; high-voltage; large-current interruption; switching overvoltage; vacuum interrupters; voltage performance; Breakdown voltage; Circuit breakers; Conducting materials; Electrodes; Interrupters; Magnetic materials; Power distribution; Production; Vacuum breakdown; Vacuum technology;
Journal_Title :
Plasma Science, IEEE Transactions on
