Online Monitoring and Diagnosis Method for High Voltage Circuit Breakers in Hydroelectric Power Plants
This article mainly explores the online monitoring and diagnostic methods of high-voltage cir-cuit breakers in hydroelectric power plants.By using sensors to collect vibration,temperature and other sig-nals of high-voltage circuit breakers,and after processing such as noise reduction and filtering,a signal trend chart can be drawn to achieve dynamic monitoring of various working conditions of high-voltage circuit breakers.By combining monitoring signals to analyze the time of singularity occurrence and the maximum modulus,the time of fault occurrence can be visually presented,providing a basis for subsequent fault main-tenance and elimination.Based on characteristic parameters such as arc ignition time,interruption time,and distribution of the first open phase in the three-phase system,the fuzzy evaluation method is used to diag-nose and evaluate the service life of high-voltage circuit breakers,providing reference for daily maintenance and repair,and extending the service life of high-voltage circuit breakers.
high voltage circuit breakersignal trend monitoringmaximum modulusmembership function
万方数据
维普
