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
150% rated current 1min., 180% 10 sec.
sensor-less vector control, V/F control
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
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.
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.