Fields of application
Industries Applications
Cement, mining and minerals Grinding mills, conveyors, fans and pumps
Chemical, oil and gas Compressors, extruders and pumps
Metals Blast furnace blowers, fans and pumps
Pulp and paper Fans and pumps
Power generation Gas turbine starters, ID/FD fans and pumps
Water Pumps
Renewable energy Wind turbines, tidal and wave energy generation
Other applications Test stands and wind tunnels

 The RMVC 5100 is designed for maximum reliability, efficiency and versatility – features that have a direct impact on the customer’s cost of ownership.

Multi-level features

Very low levels of input current harmonics with high input
power factor.
∙ Sinusoidal current output to motors – no significant
temperature rise in the motor due to current harmonics.
∙ No significant motor shaft torque pulsations – kind to shaft
coupling and mechanical load.
∙ Lower dV/dt voltage stress imposed on to the motor and
cable insulation systems.
∙ Lower amplitude of PWM switching at the output
significantly reduces potential transmission line effects
when long output cables are used to the motor.
∙ Lower amplitude and frequency of PWM switching at the
output significantly reduces potential for stray currents
through the motor bearings.
∙ Use of low-voltage IGBTs which are easily obtainable,
highly reliable and well-proven.
∙ Low losses since IGBTs do not need snubber circuits and
require little switching power.
∙ Current can be switched off instantaneously in the event
of a fault in the output circuit.
∙ Modular design.
∙ Medium voltage output achieved without output transformer.