10 hp (7.5 kW) VFD, Three Phase 220V, 440V, 480V

Affordable 10 hp (7.5 kW) VFD, three phase 220V/440V/480V input for option, three phase output variable frequency drive, 17 amps, manufacturer direct sale.
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Delivery date: 6 - 12 Days

10 hp variable frequency drive, three phase 220V /440V /480V ±15%.


Basics Model GK3000-4T0075G/ GK3000-2T0075G
Capacity 10 hp (7.5 kW)
Shipping weight 6.5 kg
Dimension 280*181*183 mm
I/O Feature Rated current 17A at 380V ~ 480V, 32A at 220V ~ 240V
Input voltage 3 phase 220V /440V /480V AC ±15% (Optional)
Input frequency 50Hz/ 60Hz
Output voltage 3 phase AC 0~input voltage
Output frequency 0.00~400.00Hz
Over load capacity 150% of rated current for 1 minute, 180% of rated current for 3 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: Small rating VFD will damage if connect it to high rating transformer

If your small rating variable frequency drive (VFD) getting damage then there may be a voltage spikes issue because according to the thumb rule if the transformer KVA rating is 10 times of KVA rating of VFD, say a 100 kVA transformer for 10 hp VFD, then it is subjected to voltage spikes that can damage it. Line reactors are the best way to compensate that but mostly users don't use the reactors for small rating VFDs.

If your VFD is large enough compared to your generator then there can be issues with the semi-conductors on the VFD firing correctly. This was an issue one of VFDs experts always checked when large VFDs needed to be run by a back-up generator.

You may always want to look at the power quality during start-up. Voltage spike will damage the semiconductors on the front end to the VFD. So if you were using the reactors then problem may be different but if you don't then I suggest you to use reactors.

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