ELECTRIC MOTOR CONTROLLER

Low starting current during startup of motor (Around 150% of rated current), with soft gradual ramp (no current peak).

Smooth soft starting and soft stopping.

Significant reduction in mechanical stresses of the coupling and transmission devices (gearboxes, pulleys, gears, conveyors, etc.) during start (no torque peak).

Increases motor and equipment lifetime due to the elimination of mechanical shock.

Avoids the “Water Hammer” in pumps, and pressure surges, and so having longer life for pipe lines.

Using power electronic semiconductors (Thyristors) to control the motor voltage at starting up and at stopping, and a built in single contactor for continuous steady operation.

Connected to motor through 3 terminals, so it requires less cabling (3 cables), and easier setup and installation.

Fire pump controller is rated 50 degree ambient, and soft starter unit is rated 55 degree ambient (UL Listed).

Limitation of voltage drop during start up, so less rated power source is needed.

Controls the variation of the firing angle of thyristor bridge generating a gradual and continuous effective voltage at its output and it is increased until the rated line voltage is reached.

Gradually reduces the output voltage to a minimum value in a preset time thus providing a highly controlled and highly secure stop of the connected firefighting pump.