DYQ4 series H.V. squirrel-cage motor liquid resistor soft starter

Product Description

. DYQ4 series liquid resistor starter can induce the impact which is brought to motor starting current on power system, and improve the start smoothness with equipment by voltage-reduced starting by way of liquid resistance. It can protect the motor avoid harm by over-load, phase failure, short circuit etc. It is the prefect starting production instead of auto-induction voltage-reduced starter.
The device is composed of resistor, high-voltage soft start controller, isolating cabinet, changeover cabinet and star point controller. We supply in full sets. The device can start motor and play a protected action on motor start process, when connect it in motor start circuit.
　 This resistor is composed of three phase balancing resistor which have negative temperature characteristic, when the current is past through resistor, the temperature of resistor gradually increase and its resistance gradually decrease, then the terminal voltage of motor gradually raise and the start torque gradually increase, so the motor can start smoothly and the start current can be decreased.