天津通风管道匠心厂

The application of high voltage vacuum circuit breaker in China's power supply system began in 1978. Its advantages, such as light weight, simple structure and long service life, are quickly recognized by the operation, maintenance and technical personnel of the power department. The quality of high-voltage vacuum circuit breakers manufactured in China in the early stage is not stable enough, the overvoltage oshijiazhuang.71ix.cnwww.juanzhiji.com.cnwww.dianzugui.com.cnwww.shoutao.org.cnwww.qibiji.org.c

nwww.hrbzhoucheng.net.cnf current carrying is too high during operation, and there is leakage in some vacuum interrupters. By the 1992 Tianjin Vacuum Switch Application and Promotion Conference, the manufacturing technology of vacuum circuit breaker in China has entered the forefront of the same type of products in the international industry, and has become a new historical turning point in the application and manufacturing technology of high voltage vacuum circuit breaker in China.