3.3 to 11 kV, up to 7,350 kVA (8,000 HP)

The TMdrive-MVe2 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, regenerative operation...and reactive power control operation are designed into the drive.
The TMdrive-MVe2 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, mills, hot gas expanders, etc.
Energy regeneration capability is included, allowing braking of overhauling loads and rapid stopping of loads such as fans and pumps.


Design Feature Customer Benefit
Active line side converter
  • Unity (1.0) power factor across entire speed range
  • Line side harmonics much lower than IEEE 519-2014
  • Standard regenerative braking
  • Reactive power control up to 80% of inverter kVA
Conservative electronic design & dry film-type capacitors
  • Highly reliable operation, expected 16-year MTBF
  • No need for periodic capacitor replacement (15-year life)
Multilevel drive output voltage waveform
  • No derating of motor for voltage insulation or heating required
  • Applies easily to existing motors without the need for an expensive output filter
  • Eliminates the need for special VFD rated cables
  • No Neutral Shift
Input isolation transformer included in drive package
  • Simplifies design and installation
  • Less total space required, plus easy integration in MCC building
  • Higher reliability than transformer-less design
  • High frequency transients are attenuated
Power conversion module in a single drawer type package
  • Reduction in spare parts
  • Minimal personnel training for maintenance
  • 30 minutes Mean Time to Repair (MTTR)
Synchronous bumpless transfer of the motor to the utility line
  • Allows control of multiple motors with one drive
  • No motor current or torque transients when the motor transitions to the AC line
  • Dynamic VAR compensation for the synced motor

Benefits of the TMdrive-MVe2 Active Front End Drive

TMdrive-70e2-angle (1)


3.3 kV, Up to 40,000 HP (36,000 kVA)

The TMdrive-70e2 from TMEIC is a high-power, water-cooled drive system. Its rugged design is suited for induction or synchronous motors using advanced, fully digitalized vector controlled three-level Pulse Width Modulation (PWM).
The TMdrive-70e2 uses the very latest in proven power switching technology, the injection enhanced gate transistor (IEGT). The IEGT is a voltage-switched power device with low on-state voltage and high-speed switching....
Flexible arrangement of converter, inverter, and cooling units provides high-power density in a very small floor space with lower installation costs.
The high-power TMdrive-70e2 can be used in many applications, including:
- Precision-controlled processes with high dynamic performance requirements such as large metal mill main drives.
- Large fan and pumping and compressor applications. The TMdrive-70e2 provides accurate speed control and high efficiency while eliminating the need for high maintenance mechanical flow control devices.
- Grinding mills with high overloads and impact loads.
- Mine hoists, with high overloads and overhauling loads.
General Specifications
- The TMdrive-70e2 drive includes a fully digitalized vector controlled three-level pulse width modulated (PWM) inverter and the choice of either an active regenerative AC-to-DC converter.
- Power levels of 6000 kVA to 36,000 kVA at 3300 output volts (any output voltage through output matching transformer).
- Low harmonic distortion to the power system – meets IEEE-519-1992 guidelines with the available IEGT active, regenerative power converter.
- TMEIC family common control platform, including PP7EX2 microprocessor, control I/O, and TMdrive Navigator tool.
Related Solutions
- Dyna-VAR


The TMdrive-10e2 is a low voltage, IGBT inverter, AC system drive for control of variable speed AC induction motors.

The TMdrive-10e2 is the latest member of the TMdrive Family offering reliability, simple configuration and maintenance, low cost of ownership, and a compact design.

The TMdrive-10e2 is available for operation at 460, 575, or 690 voltage output. A regenerative converter option is available for energy savings and power factor correction.


TMdrive-10e2 Features and Benefits

Design Feature Customer Benefit
State-of-the-art microprocessors including floating point calculation
  • Higher processing speed and communications for next generation control system
  • Per unit calculations are easy to understand
Heat Pipe Cooling Technology
The cabinet-based IGBT power bridges use heat pipe cooling technology
  • Reduces Footprint and Lowers Audible Noise - this technology saves valuable floor space and lowers the required cooling-air flow, reducing the associated audible noise.
Microsoft® Windows® – Based Configuration
The TMdrive-Navigator is used to configure, install, and maintain the TMdrive-10e2 drives.
  • World-class tool across all system drives.
  • Flexible Tool Connectivity - native Ethernet drive interface allows flexible point-to-point TMdrive-Navigator communication over control LAN or even via your factory LAN.
LAN Options

  • TC-net™ I/O
  • Profibus™-DP
  • DeviceNet™
  • Modbus™ RTU
  • Ethernet Global Data (EGD)
  • ControlNet™
  • Multiple controller platforms supported - for virtually all controller platforms, these LAN options provide seamless integration with the rest of your factory.
  • Connectivity to legacy equipment - Existing equipment can be seamlessly integrated into new systems.
Recognized Safety Features

  • ISO 13849-1 (Category 3)
  • IEC 61800-5-2 (Safety Integration Level 2)
  • Risk is defined and analysis simplified according to these standards.
  • Integrated hardware removes the requirement for external components to meet standards – the system is simplified and reliability improved.


The TMdrive-DCe2 is a family of DC system drives for new and retrofit applications.

TMdrive-DCe2 Features and Benefits

Design Feature Customer Benefit
Four different form factors:

  • Digital Front End (DFE)
  • Frame assembly
  • Module assembly
  • Cabinet assembly
  • Regardless of the application, TM-DC can meet the requirements both mechanically and in performance
Configured and monitored with the TMdrive-Navigator.
  • Ease of use, high-performance trending and other diagnostic functions
Wide range of frames from 70kW to 14323 kW
  • Regardless of your application, TM-DC has a frame to meet your requirements