Rnmv-g (three in one) medium and high voltage solid state soft starter is composed of rnmz handcart series medium and high voltage solid state soft starter, circuit breaker, comprehensive protector and bypass contactor.

working principle:

The control core of rnmv series is microprocessor CPU, which can start and protect the motor.

CPU controls SCR to conduct phase angle trigger control to reduce the voltage applied to the motor, and then smoothly increase the motor torque by controlling the voltage and current applied to the motor until the motor accelerates to full speed. This starting mode can reduce the starting impulse current of the motor and reduce the impact on the power grid and the motor itself. At the same time, it also reduces the mechanical impact on the mechanical load device connected to the motor, so as to prolong the service life of the equipment and reduce failure and shutdown.