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Help Center1140V Medium Voltage AC VFD Drive for Petrol Pumps Application
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Certification:CE
1140V Medium Voltage AC VFD Drive for Petrol Pumps Application
G11 series 1140VAC VFD is vector control type VFD. In the petrol producing field, the pumps keep ups and downs to pump oil from ground. The energy of motor reversing make the voltage hit a high level in short time, so we will use the 4 quadrant structure. In this way, we feed back energy to the main net as well as keep voltage in a safe level.
Power range of G11 VFD
Voltage: 1140VAC (959VAC – 1311VAC)
Power: 45kw/60HP – 400kw/535HP
Specification of G11 VFD
|
Item |
Specification |
|
Input frequency |
50/60Hz |
|
Output frequency |
0-400Hz |
|
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 |
±0.2% |
|
Torque precision |
±5% |
|
Setting frequency menthod |
Plastic Extruder Machines, multi-step speed, simple PLC and PID. |
|
Output frequency resolution |
0.01Hz |
|
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. |
|
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.
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