Design and analysis of miniaturized motor operating actuator used in vacuum circuit breaker in distribution network

The dynamics performance of switchgear in high voltage distribution network are analyzed, the design concept of miniaturized motor actuator is proposed. According to the mechanical reaction characteristics and operating performance requirements of the circuit breaker, main dimensions of drive driving device are calculated, and the motor performance under the same volume, different parameters is analyzed, and the matching scheme with the best comprehensive performance of the drive device is determine. The mathematical analytical equation and calculation model of the driving device are constructed by numerical calculation method, and the dynamic mechanical characteristics of the driving device are obtained. The results show that the volume of driving motor is reduced by 23%, and the speed of movement increased by 38r/m.