• Sourcing Solutions
  • Services & Membership
  • Help & Community

Quick Details

  • Place of Origin: Hubei, China (Mainland)
  • Brand Name: WORLDSURE
  • Model Number: WLQ medium voltage soft starter
  • rated voltage:: 380V-12KV (adjustable)
  • rated motor power:: 75KW-10000KW (adjustable)
  • suitable motor: AC asynchronous motor
  • start current:: <= 1.3Ie(A)
  • continuously start time:: 5-10 times continuously
  • relative humidity temperature:: -25---50C
  • voluntary standard:: Q/XWZ2-2000;GB7521.1-1997 IEC439-1:1992)
  • description: HV MV motor soft starter
  • start time: 10~60s adjustable
  • main function:: AC motor soft starter

Packaging & Delivery

Packaging Details enclosed sheet: quality approval sheet, user's guide, accessory manual
standard packing: one piece/ protection industrial plastic bag + protection carton
special packing: wooden case
others: according to transportation demand
Delivery Time 30 working days

                                    75 to 11000KW medium voltage 11kv soft starter 


1 ) General introduction: 

1:smooth start, without shook to equipment, extend the using life,save equipment maintain cost

2:reduce start current 1.3times, reduce  temperature increasing of motor, largely extend  the long of motor,

3:can start in lower rated voltage

4:free maintenace, full protect to motor


2)operating principle:

  **For wound rotor asynchronous motor, when the grid voltage and frequency are invariant,

    the connection of the starting resistor  to the rotor loop will reduce the starting current

    and get a larger  starting torque.


  **putting special compound electrolyte into the rotor loop of the  controlled winding motor as

    the liquid resistance, when the stator receive the signal of the motor starting,  it will change

    the location of the electrolyte automatically, so as to reduce the resistance value gradually.


  **when the resistance reached the minimum level, the sensor closed and motor rotor star

     connected  directly, then the equipment start smoothly with a low current, large torque.

suitable motorAC wound rotor  asynchronous motor
Rated voltage380V~ 12KV
freqeuncy3phase 50Hz
Rated power75KW ~11000KW
characteristicmotor start current<1.5 Ie (A)
continuous start time5~10 times
start voltagecan start in lower voltage than rated
cabinet size2300X1300X1560
protection functionlower/higher voltage; over temperature;over stroke;etc
northern cold areawill equip self-healting function
southern torrid zoneautomatic cycle cooling system
speicalcan help motor start in unstable or lower voltage 
Main function1) soft starterstepless start, protect motor and loaded device
2)save powerstart current <1.5Ie, save power
3)protectionmulti protection for motor 
working condition   ( if special, pls clarify)temperature-20C ~ + 50C
air humidity<=90%
Altitduenormal 2000m
specialcan used in dry climate







Transaction History of the Supplier

Below is the information about the supplier's transactions conducted via Alibaba.com. If you require further details regarding the transaction data, please contact the supplier directly.

Transaction Overview


Transaction Details

This supplier has completedtransactions with buyers from .

Shipping Destination
Transaction Value
Transaction Date
Email to this supplier
China (Mainland) | Manufacturer, Trading Company
Supplier Assessments:
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $40,000
Learn More