ZJSHUYI Characteristics and working principle of soft starter. www.shuyi...

The soft starter utilizes the electronic switching characteristics of the three pairs of thyristors, and controls the timing of the trigger pulse through the microprocessor in the starter to change the size of the trigger delay angle, and the size of the trigger delay angle of the thyristor can also change the conduction of the thyristor. time, thereby ultimately changing the magnitude of the three-phase voltage applied to the stat winding. The characteristic of the soft starter is that the motor torque is approximately proportional to the quadratic of the stat voltage, and the current of the motor is proportional to the stat voltage. Therefore, the limit of the starting torque and initial current of the motor can be realized by controlling the stat voltage. . The soft starter motor stat voltage is controlled by the conduction angle of the thyristor, so different initial phase angles can achieve different terminal voltages to meet different load starting characteristics. During the starting process of the soft starter motor, the conduction angle of the thyristor gradually increases, the output voltage of the thyristor also gradually increases, and the motor accelerates from zero until the thyristor is fully turned on and the start is completed, thereby realizing the stepless smooth start of the motor. The maximum starting torque and starting current of the soft starter motor can be set according to the load. www.shuyitop.com; Tel/Fax: 0086-577-62840011 WhatsApp: 008613355775769 #softstarter #motorsoftstar #softstarters #softstartechnology #softstartermarket #softstarterprice #ac powersoftstarterwithbuilt-inbypass #builtinbypasssoftstarter #ZJSHUYI #Chinashuyi #shuyitop