Spot / cheap / sale [brushless WSQ3 no starter ring (Figure)] - factory direct starter: Brushless starter ring / WSQ3 brushless acyclic starter / brushless starter / non-starter ring / brushless controlled motor starter / WZR controlled brushless motor soft starter / WSZQ controlled brushless vacuum motor starter / the wound motor starter / wound rotor motor starter / high voltage winding motor starter / winding three-phase asynchronous motor starter / YR type wound rotor motor starter / JR wound rotor motor starter / YR winding three-phase asynchronous motor starter / YRKK high voltage winding motor soft starter / YZR wound rotor motor starter / JZR wound rotor motor starter / high voltage wound rotor motor soft starter / rotor slip ring motor starter motor starter brushless rheostat starter / Brushless the rheostat / brushless rheostat starter cabinet brushless liquid resistance starter / WSZK Brushless Liquid Resistance vacuum motor soft starter brushless frequency sensitive rheostat motor soft starter brushless vacuum motor starter starter: brushless starter acyclic / WSQ3 brushless ring starter / brushless starter / no the the ring controlled brushless motor starter / starter / WZR controlled brushless motor soft starter / WSZQ controlled brushless vacuum motor start / winding motor starter / wound rotor motor starter / high voltage winding motor starter / the the phase winding induction motor starter / YR wound rotor motor starter / JR wound rotor motor starter / YR winding three-phase asynchronous motor starter / YRKK high voltage winding motor soft starter / YZR-type around the the line rotor motor starter / JZR wound rotor motor starter / high voltage wound rotor motor soft starter / rotor slip ring motor starter motor starter brushless rheostat starter / brushless the rheostat / brushless rheostatic, start cabinet Brushless Liquid Resistance the starter / WSZK Brushless Liquid Resistance vacuum motor soft starter brushless brushless motor soft starters, frequency sensitive rheostat the vacuum motor starters Product Introduction and characteristics JR JZR, YR, YZR, three-phase wound rotor AC induction motor (also known as slip ring motor). Its rotor external resistance or reactance, in starting with high power factor and high starting torque, in the fields of metallurgy, machinery, chemicals, mining, building materials commonly used this motor to Drag the equipment. Parts fitted on the shaft of the motor slip ring, carbon brushes, a short-circuit loop frequency the rheostat and other electrical components to form a complete secondary loop system with the control box in the relay, AC contactor, motor shorting means for starting and running. The motor this work has the following disadvantages: 1, carbon brush is easy to wear, excessive consumption, the amount of maintenance, and affect the normal production. 2, between the brush and slip ring is easy to produce sparks, some places can not be used. 3, brush and slip ring friction and increased contact resistance, motor temperature rise. 4, the conductive powder is easily inhaled inside of the motor, it is a big hidden burning motor. 5, the time relay runaway easy to burn out the exchange access