Transmission lines are the components with most failures in the power system. The character of transmission lines fault is mostly transient faults, occupying about 80% to 90% in the total number of faults, from which we can know that it is quite possible to overlap the disconnected lines successfully. The circuit reconnection can be done manually, but the effect is not significant in normal for the excessive blackout time.
To improve the reliability of transmission lines for the power system, the automatic reclosing device is usually applied to the operation of disconnected line instead of the manual way. Automatic reclosing is a protective function of a miniature circuit breaker and an automatic device that automatically switches the circuit breaker tripped due to faults into operation as required. The application of automatic reclosing can improve the segmentation and over-current capacity of the power system, ensuring the continuity and quality of power supply for users. The product is mainly used in industrial, commercial, high-rise residential buildings and other buildings with stable and reliable operation.
The miniature reclosing motor is a miniature gear motor product applied to electrical circuit switch. The main transmission structure consists of a drive motor and a gearbox. ZHAOWEI gear motor solution for automatic reclosing adopts multistage transmission of the helical worm, adjusting the transmission structure for automatic reclosing, optimizing the service life and performance, achieving intelligent opening and closing of the circuit breaker.
Technical parameters of gear motor for reclosing are different in different fields, therefore gear motor for reclosing is developed with customized technical parameters. For example, the drive motor can adopt DC motor, brush motor, brushless motor, stepper motor and coreless motor as the driving source, and gearbox can use the planetary gearbox, normal gearbox, worm gearbox and cylindrical gearbox as reduction device. ZHAOWEI provides customized solutions according to different requirements of technical parameters, including output speed, power, voltage, current, reduction ratio, torque, diameter and gear materials.