TMEIC TMdrive-MVG2 Medium Voltage AC Drives

3 to 11 kV, up to 19.500 kVA

The TMdrive-MVG2 is a medium voltage, AC fed drive designed for high-efficiency

and power-friendly operation in a broad range of industrial applications.

High reliability, low harmonic distortion, and high power factor operation are

designed into the drive.

Applications

The TMdrive-MVG2 is designed for a wide range of industrial applications,

including: Centrifugal pumps, fans, and compressors, screw compressors,

blowers, refiners, mixers, extruders, conveyors, press machines, slurry pipelines,

and mills.

TMdrive-MVG2 Features and Benefits

Design Feature

• Conservative design using 1700 V IGBTs

• High energy efficiency approximately 97%

• Diode rectifier ensures power factor greater than 95% in the speed control range

• Multi-pulse converter rectifier and phase shifted transformer: 3.3 kV Class: 18 pulse

6.6 kV Class: 30/36 pulse 10 kV Class: 48 pulse 11 kV Class: 54 pulse

• Multiple level drive output waveform to the motor (11 levels for the 6.6 kV inverter)

• Synchronous transfer to line option with no interruption to motor current

• Input isolation transformer included in drive package

• Direct drive voltage output level

Customer Benefit

• Highly reliable operation, expected 12-year drive MTBF

• Considerable energy savings

• Capacitors not required for power factor correction

• No harmonic filter required to provide lower harmonic distortion levels than IEEE-519-1992

guidelines

• No derating of motor for voltage insulation or heating is required due to motor friendly

waveform

• Allows control of multiple motors with one drive No motor current or torque transients when

the motor transitions to the AC line

• Better motor protection Less total space required Simplifies design and installation

• No output transformer required, saving cost, mounting space, and energy