Hubei Xiangming Electric Technology Co

Characteristics of the series of solid-state soft starters


The control core of the series of motor soft starters adopts a
single-chip microcomputer chip, and the main circuit adopts three pairs of anti-parallel controllable Silicon forms a phase-controlled form, and by controlling its conduction angle, the output voltage can be changed, thereby achieving smooth starting of the AC motor.
The solid-state soft starter has the following characteristics
The unique structural design makes the internal layout of the soft starter more reasonable and simple, small in size, easy to install, and easy to integrate into existing systems
< br/> Since
the solid-state soft starter uses power devices for stepless voltage regulation, the starting process of the motor is smoother. Compared with traditional starting equipment, it avoids the use of direct starting,/
and auto-coupling. The mechanical and electrical impact of decompression and magnetic control, etc., and the initial torque of the soft starter can be adjusted according to the load condition, so its load adaptability is stronger, and it is more suitable for heavy loads and large loads. Starting
The main control circuit of the solid-state soft starter adopts single-chip microcomputer technology, which makes the hardware circuit structure simple. The signal transmission in the control unit adopts photoelectric isolation. At the same time, it relies on powerful software functions to realize the full digitalization of the controller, which is subject to The impact of power supply voltage fluctuations is minimal. A series of anti-interference measures are adopted in the circuit to ensure normal operation even in harsh electromagnetic noise environments. The fuzzy control theory is quoted in the control system to carry out current limit, ramp and current limit+
slope control during the starting process to avoid possible resonance phenomena during the starting process
After the controller starts, it automatically outputs The start completion signal controls the bypass contactor to put the motor into the grid, which extends the service life of the thyristor. Moreover, the bypass contactor does not carry current for switching, so its service life depends on its mechanical life, thereby reducing the equipment's Maintenance cost

The solid-state soft starter is easy to operate, and the parameter setting is intuitive and easy to understand

The solid-state soft starter has comprehensive protection for the motor, realizing overcurrent, overload, phase loss and other protection functions. , which can effectively prevent damage to the motor.