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.
Free shipping
Delivery date: 6 - 12 Days
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$12,199.00
$9,813.41
300 hp VFD, 220 kW VFD option for 240V, 415V, 460V etc.
Specification:
| Basics |
Model |
GK3000-4T2200G/ GK3000-2T2200G |
| Capacity |
300 hp (220 kW) |
| Shipping weight |
180 kg |
| Dimension |
1440*600*399 mm |
| I/O Feature |
Rated current |
426A at 380V ~ 480V, 820A at 220V ~ 240V |
| 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.
Existing reviews
Temperature control is great!
I've had this 300 hp VFD for 6 months now and it has performed very well on our heavy duty machining equipment. It is very stable in both low and high speed operation. Temperature control is also very good, even in a high temperature environment there is no overheating problem.
By
Inigo
on 02/09, 2024
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