Model: Efficient 75kw to 10000kw AC wound rotor motor soft starter 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) intelligent WYQ6 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 3)range of application: suitable to heavy load soft starting of wound rotor asynchronous motor, especially in industrial or mines with unstable or lower voltage 4)unique feature: 1: low starting current: the starting current is