Research On The Supervisor And Data Acquisition Of Breaker's Electrical Life Based On Rogowski Coils

This thesis uses cumulative interruptive current theory to make a system of the supervisor and data acquisition of breaker's electrical life by measuring the interruptive current with Rogowski coil. By introducing the development about vacuum circuit breaker and some theories about it's electrical life , analyzing the theory about and the principle of Rogowski coil current transformer, this thesis describes the soft and the hardware parts of the system in detail. By half-year running , the system can caculate the rest life of a vacuum circuit breaker which take a step of application of Rogowski coil and experimentation about the condition-based maintenance .