Model: | WLQ |
---|---|
Brand: | WORLDSURE |
Origin: | Made In China |
Category: | Electronics & Electricity / Electric Control System |
Label: | Motor Soft Starter , Motor Controller , Motor Starter |
Price: |
US $4000
/ pc
|
Min. Order: | 1 pc |
Live Chat: | Last Online:26 Nov, 2014 |
Range of application
It is applicable to the soft starting and protection of large and medium cage style motor or synchronization motor with a rated voltage of 3kV~10kV, especially in industrial and mining establishments where power grid capacity is not enough.
Operating principles
Put special liquid resistor which can perform voltage division and current limiting into the motor stator loop, in the starting, liquid resistor’s resistance can automatically change from large to small within the set time, when it changes to zero, the liquid resistor is automatically cut off and the motor gets into operation.
Main performance characteristics
Small starting current, 1.5~3.5 times of the motor’s rated current;
Smooth starting, no shock, guarantee for the reliable operation of power grid, effective protection motor and transmission gear and strengthens the equipments’ service life;
Continuous starting 5~7 times, starting performance is better than reactor starting and thermal alteration resistor starting;
With sound warning function and motor protection;
PLC control, reliability;
Simple structure, convenient maintenance, and low requirements for maintenance staff;
Aiming at different load conditions and different use occasions, rotary plate structure and shift-type structure with autonomous patent right were respectively developed to make it have wide adaptability.
In order to satisfy the special requirements of the occasion where the frequent starting happens, the frequent-starting type high voltage cage-shaped starter with autonomous patent right was developed to better overcome the disadvantage that the common high voltage cage-shaped starter cannot be started frequently.
Working conditions
Environmental temperature: -40℃~+50℃;
Air relative humidity: shall not exceed 90%;
Altitude shall not exceed 1000m ( it can be specially designed according to the specific operating condition when the altitude is over 1000m );
Ground gradient shall not exceed 5°;
Installation places shall be free from fire, explosion, chemical rosion and excessive vibration.
Note: if there are special conditions, please contact and negotiate with us when ordering.
Main technical parameters
Rated voltage (kV): 3,6,10;
Maximum voltage (kV): 3.5,6.9,11.5;
Per minute power frequency withstand voltage (kV): 25,30/32,38/42 (comparatively);
Per minute power frequency withstand voltage (kV): 12,15,18 (among phases);
Starting current (A): Iq:1.5~3.5Ie;
Starting time (s): 10~60~120 (adjustable);
Normal operation temperature electro hydraulic (℃): 5~70;
Continuous starting times (times): 5~7 times.