3kV 6kV 10kV Medium And High Voltage Three-Phase AC Motor Soft Starter Panel For Heavy Duty

High voltage motor soft starter is the new type ac motor start device to replace the conventional star-delta starter, self-coupling voltage-drop starter and magnetic control voltage-drop starter. The start current can be lower than about 3 times rated current and could start repeatedly and continuously.

The current transformer detects three-phase current and is used for current limiting and protection. Voltage transformer detects three-phase voltage. It is used for triggered phase detection and voltage protection for overvoltage and undervoltage. The MCU controller controls the thyristor for phase Angle trigger control, simultaneously reduces the voltage on the motor, limits the starting current, and smoothly starts the motor until the motor runs at full speed. After the motor is running at full speed, switch to the bypass contactor. The medium voltage motor soft starter continues to detect the parameters of the motor to protect the motor. The high voltage motor soft starter can reduce the inrush 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 motor loading device, prolongs the service life of the device and reduces the failure of the motor. The keyboard&display module display all the parameters and status data of the motor soft starter.