Automatic reclosing is a kind of protection function of the miniature circuit breaker, which is an automatic device to automatically switch the circuit breaker according to the needs which trips off due to fault. Its application can improve the breaking and overcurrent capacity of the power supply system, thus protecting the continuity and quality of power supply. It is mainly used in industry, commerce, high-rise buildings, residences and other places with stable and reliable operation.
The small reclosing motor is a kind of miniature gear motor used in circuit switches of electrical equipment, whose main transmission structure is assembled by a drive motor (micro motor) and planetary gearhead (reducer). Different application fields of reclosers need different technical parameters of gear motors. Therefore, the drive motor can adopt DC motor, brushed motor, BLDC motor, stepper motor and coreless motor as the drive source while the micro gearbox can adopt planetary gearhead, cylindrical gearhead, worm gearhead and other common gearheads as the reducer. The technical parameters are often customized for development including the output speed, power, voltage, current, gear ratio, torque, diameter, gear material, etc. ZHAOWEI provides a set of customized gear motors to choose from.
Project Name: Intelligent Automatic Reclosing Gearbox
Project Introduction: The gearbox solution of automatic reclosing (miniature circuit breaker) adopts helical worm gear multi-drive design, adjusts the transmission structure of automatic reclosing, optimizes its service life and performance, and realizes the switching and closing of the intelligent circuit breaker. The intelligent reclosing device (circuit breaker gear motor) is used as the effective anti-accident measures on overhead transmission lines and overhead power lines, except the process of cable transmission and power supply. That is to say when a circuit fault occurs and relay protection causes the circuit breaker to trip, the automatic reclosing device makes the circuit breaker close again after a short-time interval, thus improving the reliability of power supply in the power system.
Achievement: The small PV grid-connected auto reclosing gearbox developed and designed by ZHAOWEI focuses on the electrical and mechanical service life in order to avoid Intermittent voltage faults in distributed PV generation and enhance the continuity of receiving electricity.