GRJ 50-1500A 3000-10000V High Voltage Motor Solid State Soft Start Cabinet

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Product Description

GRJ series high-voltage motor solid-state soft starter is a soft-starting device used to start (6000V~10000V) high-voltage AC asynchronous or synchronous motors. It is mainly suitable for medium and high-voltage AC motors below 10KV. It adopts advanced DSP control technology, power electronic technology and other main composition. It connects three-phase parallel thyristor components and electronic control equipment between the stator winding of the high-voltage motor and the power supply. When the motor starts, the conduction angle of the thyristor is controlled according to a certain rule (such as constant current or voltage ramp), and the input voltage of the stator winding of the motor is continuously changed until the full voltage. After the start is completed, the bypass contactor is pulled in . In addition, the GRJ series high-voltage motor solid-state soft starter also has a "soft stop" function. During soft stop, the motor stator winding voltage will be smoothly reduced, thus a voiding sudden stagnation of the drive. Or conveyor belts are useful.
Compared with other traditional starting methods, its unique intelligent control method can not only conveniently and accurately set parameters such as starting torque, starting current, starting time, stopping time, etc., but also network control with microcomputer and PLC. Now in machinery manufacturing , cement production, metallurgy, mining, oil production, chemical industry, water treatment, petrochemical and other industries pumps, fans, pumping units, air compressors, ball mills, cranes, compressors, crushers, conveyors, elevators, It is widely used in various loads such as centrifuges and rolling mills. Liquid high pressure soft starters will be phased out.

Model Description

Technical parameters and structure dimensions

Product features and scope of use

1. Smooth start and soft stop avoid the surge problem and water hammer effect of traditional starting equipment;
2. A variety of starting modes and a wide range of current and voltage settings can be adapted to various load occasions and improve the process.
3. Improve the reliable protection function and more effectively protect the safety of the motor and related equipment.
4. Reducing the starting current of the motor can avoid voltage drop and voltage dip in the power supply. Reduce power distribution capacity and avoid investment in capacity expansion.
5. Reduce the starting stress and prolong the service life of the motor and related equipment. Save maintenance costs and save a lot of money.
Soft start device configuration:
It is divided into two structures: the superior motor outlet cabinet, the cable from the motor starting cabinet to the soft starting cabinet, and the cable from the soft starting cabinet to the motor. Integrated high-voltage solid-state soft-start cabinet, switch cabinet and soft-start are integrated into one switch cabinet, which is small in size and easy to install, and can be installed together with other switch cabinets.
Normal working conditions:
(1) The upper limit of the ambient temperature is not more than 50°C (the average temperature in 24 hours is not more than 35°C), and the lower limit is not lower than -15°C;
(2) The relative humidity does not exceed 95%; the altitude does not exceed 1000m, and the capacity should be reduced when it exceeds 1000m;
(3) It should be placed indoors, without severe vibration and shock, and without fire and explosion hazards;
(4) Conductive dust and corrosive gas are not allowed.