High quality 380V 6KV 10KV medium high voltage soft starter panel for slip ring motors

 1) direct starting problem

motor will create big current shake if start directly ( 5-8 times more than rated current), it makes big strike for electic grid and loaded equipment, heavily reduce motor and equipment service life,Sometimes motor burnt .so,stepless smooth start and stop is neccessory

2)Application

This product is suitable to the heavy-load soft starting of wound rotor asynchronous motor (3 phase AC 50HZ, rated voltage 380V-12KV), especially in industrial or mine companies with unstable or lower voltage.

3) intelligent WYT main function

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

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

3:Full protect motor and loaded equipment

4)range of application:

suitable to heavy load soft starting of wound rotor asynchronous motor,

especially in industrial or mines with unstable or lower voltage

5)unique feature:

1: low starting current: the starting current is<= 1.3Ie(A)

2:the cabinet and water tank adopt a full-closed structure, which can avoid evaporating of the electrolyte,lengthen the equipment working life and reduce the mantaining frequency.

 3:it can start under a lower voltage, for example, start in 5.5KV when rated voltage 6KV

 4:the equipment is also suitable to be long time used in climate of less than 200mm raning yearly

 5:with a cycle pump, a unique automatic cycle colling system designed for this product, can release the leat in the tank in very short time

 6: can started continuously for 5-10 times

 7: adpts worm gear and worm lifter as the transformation tool, which is stable,reliable and noiseless

 8: the equipment has reliable cabinet struction, which is wholly automatically operated and convenient to be installed and maintained.

6)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.