660V Medium Voltage Variable Frequency Converter Drives for Blowers
Brand Name:GANDO
Certification:CE
Model Number:660V-G7-__KW
Minimum Order Quantity:1 set
Delivery Time:2 days
Payment Terms:TT, L/C, Western Union, Paypa
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Location:
Xiamen Fujian
Business type:
Manufacturer Trading Company
Address:
701 of NO.69, xilinxili, siming, xiamen, China
Supplier`s last login times:
within 34 hours
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660V Medium Voltage Variable Frequency Converter Drives 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
Features | Benefits |
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: 660VAC (450VAC – 690VAC)
Power: 22kw/30HP – 400kw/535HP
Specification of G11 VFD
Item | Specification |
Input frequency | 50/60Hz |
Output frequency | 0-400Hz |
Overload current | 150% rated current 1min. |
Control mode | Close-loop vector control, sensor-less vector control, V/F control |
Starting torque | 150% 1hz (with PG 0hz) |
Control precision | ±0.2% (With PG ±0.02%) |
Torque precision | ±5% |
Setting frequency resolution | Digital command 0.01hz; analog command 0.03hz/60hz |
Output frequency resolution | 0.01Hz |
Frequency setting signal | -10V~+10V；0~+10V(20kΩ)；4~20mA |
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) |
Enclosure | IP20 |
Cooling mode | forced air cooling |
Vibration | Less than 0.2g for 20hz |
Ambient temperature / Humidity | -10 Degrees~+40 Degrees / 20~90%Rh (no condensation) |
Tips:
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.
660V Medium Voltage Variable Frequency Converter Drives for Blowers
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