The Development Of High-Voltage Circuit Breakers Monitoring And The Research Of Diagnostic Techniques

The high-voltage Circuit Breaker is the most important electric equipment except the Generator and the Transformer, It's function is in of touch with the whole electric power system stabilization and power supply reliability. So it's very important to improve the maintenance level and carry out Condition Based Maintenance of Circuit Breaker. This Paper points out the abuse of the existing maintenance modes, and expatiates on the importance of realization of Condition Based maintenance. By the research of contact wear loss of Circuit Breaker and on the basis of adopting the prior investigation it brings forward a compositive evaluation method and gives the remainder span on supposed conditions, and realizes the diplex Condition Monitoring of electric endurance and mechanical span. Also this paper explores the diagnostic techniques of high-voltage Circuit Breaker, on one side it analyzes the statistical data and judges the health of Circuit Breaker, on the other side it simulates the wave aberrance of the close and trip loops by adopting wavelet transform modulus maxima. Zhang Chao(electric power system and automation)Directed by prof. He RenMu...