Home Product MV Motor & Drive MV AC Drive

MV Motor & DriveMV AC Drive

General Description
  • IEC 62271, IEC 61800, IEEE 519, ISO 9001

  • 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

3.3–11 kV



Input

 

Rated input voltage

Three-phase 50/60 Hz, 6 kV

Three-phase 50/60 Hz, 11 kV

Voltage fluctuation

Full-load running at 6 kV/10 kV±10%; long-term running at –35% to –10% by applying derating

Frequency range

50 Hz±10%

Input voltage of power cells

690 V

Input power factor

≥ 0.95 (with load more than 20%)

Input current harmonics

≤ 4%, compliant with the IEEE 519-1992  

Output

Output voltage range

0–11 kV

Output voltage of power cells

690 V

Output frequency range

0–50 Hz; max. 720 Hz; above 120 Hz as customized product

Speed regulation ratio

40:1 (universal vector); 100:1 (SVC); 200:1 (FVC)

Rotational speed accuracy

±0.5 % (SVC); ± 0.2 % (FVC)

Startup torque

0.5 Hz/150% (SVC); 0 Hz/180% (FVC)

Technical solution

Power cells connected in series, AC-DC-AC, and high voltage input and output

Control mode

Universal vector and SVC or FVC

Rectification

Diode three-phase full bridge

Inversion

IGBT inverter bridge

Acceleration and deceleration time

0.1–6500s; > 6500s customizable

Start/Stop control

Local or remote

Control system

ARM, DSP, FPGA, and HMI

Panel display

Touchscreen, English

Overload capacity

120% of rated current, 1 minute

Efficiency

≥ 96%

Fuse equipped for the AC drive

A fuse on the input side of power cells

Optical fiber adopted for the

electrical isolation part

Yes

Input filter required

No

Output filter required

No

Power factor compensation required

No

Power cell protection

Overvoltage, undervoltage, input phase loss,

overcurrent, overtemperature, and communication

System protection

Motor overload, output overload, output short circuit, output grounding, input overcurrent,

input overvoltage, input imbalance, input grounding, cooling fan fault alarm,

door switch interlock protection, transformer overheat alarm, transformer overheat trip,

and transformer secondary short circuit protection

Mean time between failures (MTBF)

50,000 hours

Communication interface

Modbus-RTU, CANlink, Profibus-DP

Digital input

10 inputs, relay dry contact

Digital output

16 outputs, relay dry contact

Analog input

4 inputs, 4–20 mA or 0–10 V

Analog output

5 outputs, 4–20 mA or 0–10 V

Service environment

Indoor

Ambient temperature

–10°C to +40°C; derating at 40°C to 50°C; preheating before startup below –10°C

Ambient humidity

5–95%, non-condensing

Altitude

≤ 1000 m; derating at more than 1000 m. Specify the altitude when ordering.

Total noise of equipment

≤ 80dB

Cooling

Forced air cooling

IP rating

IP30

Cabinet type

GGD combined type

Cable entry and exit method

Lower cable entry and exit, or customized configuration

Control power supply

380 V±10% AC, three-phase and four-wire