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1140VAC 45kw / 60HP - 400kw / 535HP mechanical VFD medium voltage AC drive for

1140VAC 45kw / 60HP - 400kw / 535HP mechanical VFD medium voltage AC drive for

Place of Origin : China
Brand Name : GANDO
Certification : CE
Model Number : 1140V-G11-__KW
MOQ : 1 set
Delivery Time : 2 days
Payment Terms : TT, L/C, Western Union, Paypa
Supply Ability : 200 sets per week
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1140V Mechanical Medium Voltage AC VFD Drive for Blowers

Blowers are widely used in cement, textile and steel plants. We take the blowers in clean room for example.

A clean room is virtually dust and/or bacteria free. Clean rooms are used in laboratory work and in assembly or repair of precision equipment. A clean room fan supplies clean air through ventilation systems. This fan runs a system that filters exterior air, maintains temperature and humidity at constant levels, and circulates the interior air through a high-performance air filter while expelling part of the interior air.

Application Challenges

·Maintain positive pressure in the clean room.

·Maintain a high quality filtering system at all times.

·Avoid mechanical resonance in the surrounding equipment.

·Detect clogged fans or air ducts automatically.

Features of G11 matching blower application



Open Loop Vector and V/Hz Control with Torque Compensation

Provides excellent breakaway torque for thick materials and constant torque to maintain mixing speeds under heavy loads.

Preset frequency reference

Preset mixing patterns can be established for different materials.

Auto-Restart after momentary power loss

Mixing can quickly restart after fault or momentary power loss. This keeps perishable foods from spoiling in process.

Power loss Ride-Through

The mixing process in not interrupted during brief power loss (< 5 ms).

Power range of G11 VFD

Voltage: 1140VAC (959VAC – 1311VAC)

Power: 45kw/60HP – 400kw/535HP

Specification of G11 VFD



Input frequency


Output frequency


Overload current

150% rated current 1min., 180% 10 sec.

Control mode

sensor-less vector control, V/F control

Starting torque

150% 0.5Hz

Control precision


Torque precision


Setting frequency menthod

Plastic Extruder Machines, multi-step speed, simple PLC and PID.

Output frequency resolution


Frequency setting signal

0~+10V; 2~+10V; 4~20mA, 0~20mA

Protection function

Over voltage, under voltage, over load, relay, overheat speed stall, grounding, instant power cut compensation( within 2 sec for operation mode. Continue to operate after the power is available), Charging protection( not to display when the dc voltage of main circuit is less than 50v), up to 29 ways.



Cooling mode

forced air cooling


Less than 0.2g for 20hz

Ambient temperature / Humidity

-10 Degrees~+40 Degrees / 20~90%Rh (no condensation)


A variable-frequency drive (VFD) is a system for controlling the rotational speed of an alternating current (AC) electric motor by controlling the frequency of the electrical power supplied to the motor. A variable frequency drive is a specific type of adjustable-speed drive. Variable-frequency drives are also known as adjustable-frequency drives (AFD), variable-speed drives (VSD), AC drives, microdrives or inverter drives. Since the voltage is varied along with frequency, these are sometimes also called VVVF (variable voltage variable frequency) drives.

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