The hottest WSZQ controlled brushless vacuum motor starter manufacturers looking for? The dawn of the starter is the your preferred WSZQ brushless vacuum starter is based WSQ3 brushless starter ring derived on the basis of the third generation starter in the practical application WSQ3 the brushless starter ring to achieve the existing three-phase wound motor Brushless ring running but the starter is in series with the rotor circuit, due to the presence of resistance, the temperature rise of the motor, loss, rotor efficiency have an impact. Part of the motor for a long time ultra-load operation, may result in excessive temperature rise of the starter starter burned phenomenon, fundamentally change the motor starter, to better meet user requirements for motor starting performance, became the company urgent need to address a major problem. In order to adapt to the market situation, the company play their own unique advantages in terms of starting equipment, spend a lot of time and effort invested heavily in research and development of more suitable motor starter product, and finally in 2009 successfully developed the third generation of starter The series WSZQ controlled brushless the vacuum motor starters, the product has been declared national patent (patent number: 201020049819.4). It continues the series of starter "completely change the traditional starting device" philosophy, WSQ3 of brushless starter ring is the perfect combination of the vacuum shorting device, the use of motor speed and the role of inertia, set the vacuum shorting switch, when the motor speed close to the rated speed, the starter automatically shorted, so as to solve the starter directly in series with the rotor eddy current loss caused leakage resistance and heat starter. The starter while eliminating the need for wearing parts, not only to extend the service life of the motor, and also extend the service life of their own, to achieve the purpose of a truly maintenance-free operation. Product Description: JR, JZR, YR, YZR three-phase wound rotor AC induction motor (also known as slip ring motor). Since its rotor external resistance or reactance, high power factor and high starting torque at startup, while a smaller starting current. Therefore, in the fields of metallurgy, machinery, chemicals, mining, building materials commonly used in such a motor to drag the device. However, due to the slip ring, carbon brushes, brush box, short-circuit ring is mounted on the shaft of the motor parts, they are in the control box time relay, AC contactor, frequency sensitive rheostat and other electrical components to form a complete secondary loop system as this motor starting or shorting device, the motor running, prone to the following faults: 1, long-term carbon brush and slip ring friction, must be frequently changed. 2, the friction of the brush and slip ring is easy to produce sparks, some places can not be used. 3, brush and slip ring friction increases the contact resistance, caused by excessive temperature rise. 4, carbon brush and slip ring friction conductive powder is inhaled accumulated inside the motor, the most burning motor and a big hidden. 5, carbon brushes easy to wear, excessive consumption, the amount of maintenance,