On-Line Condition Monitoring Technology for Intelligent High Voltage Switchgear

Temperature rise of mental switchgear and hand contact, mechanical characteristic of circuit breaker and arc burning loss of circuit breaker contact are important aspects to cause switchgear failure, effective real-time monitor is the key to change maintenance mode of switchgear. The paper introduces the principle and application of temperature rise of online measurement system for CG2061 high voltage circuit breaker contact, remote monitoring technology of permanent magnetic actuator circuit breaker and arc burning loss of circuit breaker contact.