Product Benefits 
 WZR-type self-control motor soft starter controls the stator to overcome the soft starter motor starting torque and starting current proportional to the square (motor starting current from 7le down 3.5le, starting torque 1.6Me still 0.4Me) of this defects. WZR-controlled brushless motor soft starter motor soft start to reduce the current while increasing the motor starting torque (motor starting current from 7le down 1.7le, the starting torque is still 1.6Me), and at a maximum torque ( 2.5Me) starter motor. It consists of resistance (water resistance) starting device (resistor starter and frequency sensitive rheostat starter than in the case of the same starting current, starting torque can be increased 1.5-fold) evolved with: 
 1, controlled brushless motor soft starter to eradicate use of slip rings, brushes, when caused by the hazards. Remove the traditional, complex starter, easy to operate. Can greatly reduce maintenance costs. 
 2, saving installation space and the secondary circuit cable, reducing the starting device power consumption, saving energy. 
 WZR-controlled brushless motor soft starter with brushless operation, removing the traditional, cumbersome, multi-element composition of the starter contacts (ie, remove the slip ring, brush, brush box, short-circuit ring and the secondary loop system ), the starter motor power loss and the start time than the stator control motor soft start to reduce the more than 10 times, but the overall price of the starter soft starter is less than the other 1 / 3. 
 Scope 
 Power supply voltage: three phase 50HZ380 ~ 10KV; start frequency: more than 12 times per hour; 
 Applicable motor: three-phase wound rotor induction motor; lively height: less than 2000M; 
 Temperature: minimum temperature of -20 ℃, the maximum temperature of +40 ℃; non-flammable, explosive, non-serious corrosive gases. 
 Features 
 WZR-controlled brushless motor soft starter starting resistance is liquid, it is shown the electrical works, mechanical properties similar to the primary electrical winding induction motor soft starter, but the resistance in series under the centrifugal force, The resistance is inversely proportional to the square of the velocity decreased continuously, with constant current, constant turn short starter motor functions. Its most important feature: the company according to user needs, can make the starting current in the 0.8-2.5le, starting torque in the 0.8-2.5Me in any setting, and to the starting current, starting torque is nearly constant in the starting process. Note that, when the liquid level below the specified level, the need to add electrolyte. It is ideal for big power 
 130KW variety of wound rotor induction motor starting. 
 Main technical parameters 
 Starting current ratio load type (lst / le) starting torque ratio (Mst / Me) 
 Light loads (fans, pumps and air compressor type) 0.8 ~ 1.3 0.8 ~ 1.3 
 Overloaded (milling, crushing and cranes class) 1.0 - 2.5 1.0 - 2.0