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Dowei Electric
Dowei Electric MV AC Drive VFD

Dowei Electric MV AC Drive VFD

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Dowei Electric MV AC Drive VFD

Product catalog summary

General Description:

The MV AC Drive adheres to standards such as IEC 62271, IEC 61800, IEEE 519, and ISO 9001, ensuring compliance with seismic and structural design requirements.
It is designed for high altitude operations up to 5000m and is suitable for heavy industry applications like compressors and conveyors.
The drive offers high efficiency, a high power factor, and low harmonics.

Typical Specification:

Input: Rated input voltage is three-phase 50/60 Hz, with options for 6 kV and 11 kV. It supports voltage fluctuations and has a power factor of ≥ 0.95.
Output: The output voltage range is 0–11 kV, with a frequency range of 0–50 Hz, customizable up to 720 Hz. Speed regulation ratios vary from 40:1 to 200:1 depending on the control mode.
Technical Solution: Utilizes power cells connected in series with AC-DC-AC conversion, featuring universal vector and SVC or FVC control modes.
Control System: Includes ARM, DSP, FPGA, and HMI with a touchscreen display in English.
Protection: Comprehensive protection features for power cells and the system, including overvoltage, overcurrent, and temperature alarms.
Communication: Interfaces include Modbus-RTU, CANlink, and Profibus-DP, with multiple digital and analog inputs/outputs.
Service Environment: Suitable for indoor use with ambient temperatures from –10°C to +40°C and humidity levels of 5–95%.
Additional Features: The drive has a mean time between failures (MTBF) of 50,000 hours, forced air cooling, and an IP30 rating.

Catalog excerpts

Power Transmission & Distribution One stop equipments solution

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• Seismic design, ETGI-1.020, IEEE Std 693, NCh2369 • Structural design, ASTM A325, ANSI/AISC 360, AWS D1.1 • High altitude correction per IEC 62271 & IEEE C37, ~ 5000m • MV vector AC drive based on a two- or four-quadrant synchronous or asynchronous motor control platform • High efficiency, high power factor, low harmonics, offering efficient and durable solutions for heavy industry • Process-oriented applications, such as compressors, belt conveyors, hoists, crushers, ball mills, drive soft start Typical Specification: Two-quadrant Medium-voltage AC Drive (Variable Speed Drive) General Rating...

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Acceleration and deceleration time Start/Stop control Control system Panel display Touchscreen, English Overload capacity 120% of rated current, 1 minute Fuse equipped for the AC drive A fuse on the input side of power cells Optical fiber adopted for the electrical isolation part Input filter required Output filter required Power factor compensation required No Overvoltage, undervoltage, input phase loss, Power cell protection overcurrent, overtemperature, and communication System protection Motor overload, output overload, output short circuit, output grounding, input overcurrent, input overvoltage,...

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Dowei Electric MV AC Drive VFD

Dowei Electric MV AC Drive VFD

Catalog excerpts

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