300 hp (220 kW) VFD, 3 Phase 240V, 415V, 460V

Economic 300 hp (220 kW) variable frequency drive (VFD) for energy savings, vary motor speed and make motor in soft starting to avoid inrush current.
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Delivery date: 10 - 20 Days

300 hp VFD, 220 kW VFD option for 240V, 415V, 460V etc.


Basics Model GK3000-4T2200G
Capacity 300 hp (220 kW)
Shipping weight 180 kg
Dimension 1440*600*399 mm
I/O Feature Rated current 426 A
Input voltage Three phase 240V /415V /460V AC ±15% (Optional)
Input frequency 50Hz/ 60Hz
Output voltage Three phase AC 0~input voltage
Output frequency 0.00~400.00Hz
Over load capacity 150 % of rated current for 1 minute, 200 % of rated current for 1 seconds
Control Feature Control mode V/F control;
Sensorless vector control;
Communication RS485
Speed regulation 1:100
Start torque 150% of rating torque at 1 Hz
Speed control accuracy ≤±0.5% of rating synchronous speed
Frequency precision Digital setting: max frequency x± 0.01%;
Analog setting: max frequency x± 0.2%
Frequency resolution Analog setting: 0.1% of max frequency;
Digital setting: 0.01Hz
Torque boost Automatic torque boost, manual torque boost 0.1%~30.0%
Interior PID controller Be convenient to make closed-loop system
Automatic energy save running Optimize V/F curve automatically based on the load to realize power save running
Automatic voltage regulation (AVR) Can keep constant output voltage when power source voltage varies.
Automatic current limiting Limit running current automatically to avoid frequent over-current which will cause trip
Environment Enclosure rating IP 20
Temperature –10℃~ +40℃; VFD will be derated if ambient temperature exceed 40℃; each rise 1℃, the derate will be 5%
Humidity 5%-95%, without condensation
Altitude ≤1000m; VFD will be derated if above 1000m
Impingement and oscillation Normal running:<5.9m/s2 (0.6g); Transportation:<15m/s2 (1.5g)
Store environment –20℃~ +60℃; no dust, no corrosive gas, no direct sunlight


Tips: Benefits of Variable Frequency Drive over Star/Delta starting
On variable torque loads, power has a squared/cubed relationship to speed, so running the load at 60% speed requires between 21% and 36% of the power to run at 100% speed. On constant torque loads, power is directly proportional to speed, so 50% speed only requires 50% power. There are significant energy savings to be realized. Variable frequency drives (VFDs) also offer a soft start delivering 150 - 200% FLT at 0 to full speed with excellent current control so there are no hard start inrush current starts, particularly needed on weak power systems. Star/Delta starting is a reduced voltage method, unfortunately this also reduces torque in a squared relationship and therefore still allows 300 - 600% FL current, with resultant system voltage dips if network regulation is poor. No reduced voltage start method can compare with a VFD which maintains maximum motor air gap flux in a constant ratio of V/Hz, hence low current, high torque. Even soft starters (also reduced voltage method) are inferior if high dynamic torque control is needed.

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PDF: GK3000 VFD User Manual
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