TMEIC TMdrive-MVe2 Medium Voltage Inverter | Grenotech
TMEIC TMdrive-MVe2 Medium Voltage Inverter
Key Features
- Energy Saving Medium Voltage Inverter with variable speed drive conversion efficiency of approximately 97% (6.6 kV-3000 kVA at rated speed & full load).
- Static Var Compensation – leading/lagging reactive power is quickly & stably controlled, possible with max 70% of inverter capacity, minimizing phase advance capacitor & receiving transformer.
- World’s smallest class size – compact design with enclosure height of only 2100 mm (up to 6.6 kV-3000 kVA), reducing construction, transportation & installation cost.
- Regenerative Braking is standard – enables fast acceleration/deceleration with quick speed response.
- Sensorless Vector Control – stable speed control without a speed sensor, with an Auto-tune function for shorter commissioning.
- Very low input harmonics & low inrush current – meets IEEE-519 guidelines without harmonic filters.
- High input power factor (pf ≈ 1.0) – reduces basic electricity charges & on-site power supply requirement.
- Maintenance-free film capacitors for DC smoothing – significantly lower life cycle cost, ventilation fan life up to 7 years.
- Multilevel PWM control – output waveform close to a sine wave; usable with existing motors without derating.
- Ride-through operation during instantaneous power failures & short MTTR (~30 min) with drawer-type cell inverters.
- Wide range: 200 kVA to 8360 kVA, voltage classes 3.3 / 4.16 / 6.6 / 11 kV.
Description
Catalogue
Description
TMdrive-MVe2 – Saving Electric Power & Minimizing Peripheral Equipment
Static Var Compensation
- Leading/lagging reactive power is controlled quickly and with stability
- Reduces phase advance capacitor & receiving transformer capacity
- Compensation possible with max 70% of inverter capacity
- Preferential electricity charge applies when P.F. > 0.85
World’s Smallest Class Size
- Enclosure height only 2100 mm (up to 6.6 kV-3000 kVA)
- Units up to 6.6 kV-1600 kVA transported as a single enclosure – no shipping breaks
- Low-height enclosure fits general-purpose containers for easy overseas transport
- Front-maintenance design requires small installation space
- Input transformer & inverter placed side by side – no external cable work required
Reduced Load on Air Conditioning Systems
- Optional external input transformer reduces switchroom heating load (approx. 50%)
- Lowers air-conditioning running cost
TMdrive-MVe2 – Improved Productivity
Suitable Rapid Acceleration / Deceleration
- Standard power regenerative braking provides quick speed response
Stable Speed Control Without Speed Sensor
- Speed sensor not required – improved equipment reliability
- Sensorless vector control for stable speed control
- Optional vector control with sensor for large starting torque
- Auto-tuning function provided
Robust Immunity Against Power Supply Fluctuation
- Rated voltage output continues during short-time voltage drop or power failure (ride-through)
- Restart after instantaneous power failure is selectable
Enhanced Applications
- Extremely low harmonic content suppresses torque ripple & torsional vibration
- Supports constant-torque loads (extruders, mixers), conveyors & reciprocating compressors
- Can be used as a 1:N common motor soft starter
- Synchronous motors can also be controlled (option)
TMdrive-MVe2 – Energy Saving
Energy Saving with Speed Control
- Variable speed operation saves significant energy vs commercial fixed speed (fans, pumps, blowers)
- Example: at 80% air volume, required power drops to approx. 50%
Regenerative Power Feedback to the Power Supply
- Rotational energy returned to the power supply during deceleration – reduces energy consumption & electricity cost
- Ideal for downhill conveyors & frequent stop applications
High Efficiency
- Low switching losses of main circuit elements
- No harmonic filters or power-factor-improving capacitors needed
- Conversion efficiency of approximately 97%
TMdrive-MVe2 – Power Supply Friendly
Input Harmonic Suppression
- PWM converter meets harmonic regulator guidelines without harmonic filters
- Reduces lower-order harmonics (5th, 7th) compared to a diode converter
High Input Power Factor
- PWM converter enables operation at power factor ≈ 1.0
- Basic electricity charge reduced by ~5% (95% diode → 100% PWM converter)
- Generates leading/lagging reactive power independently of motor operation
Excitation Inrush Current Reduction
- Reactor initial charging (300 Cell Frame or higher) limits inrush current & voltage drop
TMdrive-MVe2 – Simple Commissioning, Operation & Troubleshooting
Easy Operation Panel
- LC display shows inverter operating condition on an easy-to-view screen
- Simple parameter setting & troubleshooting
Easy Device Setting / Checking (Option)
- High-performance touch-panel display supporting nine languages
Drive Troubleshooting
- First fault display, fault trace back, trouble records, fault history display & online manual
Support Function via Network Connection (Option)
- Central control of multiple inverters from a server
- Remote fault checking via the Internet using TMdrive Navigator
Maintenance Cost Reduction
- Film capacitors for DC smoothing – no replacement needed
- Ventilation fan life up to 7 years (vs 3 years for conventional models)
Applications
- Fans, blowers, pumps, compressors, extruders, fan pumps, mixers, conveyors, etc.
Catalogue
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