This product is no longer in production. TMEIC continues to offer support and service for existing customers. TMEIC recommends TMdrive-70e2 as an alternate solution.

3.3 kV, 40,000 HP
The TMdrive-70 from TMEIC is a high-power, water-cooled, precise and rugged, fully digitalized vector-controlled three-level pulse width modulated (PWM) induction and synchronous motor drive system.

The TMdrive-70 uses the very latest but 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 gives high-power density and a very small required floor space and lower installation costs.

The high-power TMdrive-70 can be used in many applications, including:

Precision-controlled processes with high dynamic performance requirements such as large metal mill main drives.
Large fan, pumping and compressor applications. The TM-70 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 TM-70 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 or a diode converter.

Power levels 5000 kVA to 40,000 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.
More economical diode AC-to-DC power conversion with 12 and 24 pulse configurations to supply non-regenerative loads such as fans or pumps.
Induction or synchronous motor compatibility.
Uses the TMEIC family common control platform, including PP7 microprocessor, control I/O, and the TMdrive Navigator tool.
TM-70 power conversion components include:

TMdrive-70 inverters (8,000 and 10,000 frames) that can be paralleled up to 40,000 kVA capacity.
TMdrive-D70 diode non-regenerative AC-to-DC converters (8,000 frame) that can be configured in 12 or 24 pulse arrangements.
TMdrive-P70 regenerative AC-to-DC converters (8,000 and 10,000 frames) that can be paralleled in combination with inverters up to 40,000 kVA capacity.