Advanced Technologies, Expert Implementation

RXPE Circuit

Our soft starters adopt patented technology to achieve significant reductions in starter current requirements.

In this section

VSC Converters
Suite of MV Drive Cubicles
MV Soft Starter 2

RXHK has developed an innovative variable frequency starter (VFS) technology for soft start and soft stop applications. It achieves discrete frequency conversion and step-less voltage regulation through thyristor control. Start and stop control methods range from voltage inclination start to constant current start and soft stop to braking stop. Starters are precisely tailored to suit a machine’s load behaviour.

Our VFS technology can be applied to the soft start and soft stop of blowers, pumps, compressors and other high voltage three-phase AC induction motors or synchronous motors. It can also be used in applications requiring fixed frequency conversion speed regulation.

Technical details

RXHK’s MV motor soft starters can output 12.5Hz, 25Hz and 50Hz frequencies. They achieve a lower starting current with higher starting torque by controlling the voltage-frequency ratio of the motor.

Technical parameters

Rated capacity 4MW-200MW
Motor voltage AC 6kV to 13.8kV


Industries Applications
Chemical, oil and gas Fans,compressors and pumps
Power generation Fans and pumps
Cement, mining and minerals Grinding mills, conveyors, fans and pumps
Metals Fans and pumps
Water Fans and pumps
Sewage treatment Fans and pumps
Pulp and paper Fans and pumps
Other applications Refrigeration compressors, extruders, HVAC systems, centrifuges, mixers, propellers and anchor winches

Contact us for more detail about our MV Motor Soft Starter

+44 (0) 161 2330689

email us

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