Study on Switch-on and Switch-off Time of On-line Monitoring for the Vacuum Circuit Breaker in Traction Substation

摘要

This paper studies the method of determining switch-on and switch-off time of on-line monitoring system for vacuum circuit breakers in traction substation based on engineering project. In switch-on and switch-off process, the on-line monitoring system gets displacement signal of moving contact through the guyed displacement sensor, and gets vibration signal through the piezoelectric acceleration sensor, then the signal monitored is sent to the industrial personal computer through the data acquisition unit taking DSP as the core and the communication network. After comprehensive analysis by the backstage management software in the computer, switch-on and switch-off time can be determined.