Customized single phase 220 volt to three phase 380 volt VFD, 10 hp variable frequency drive for AC motor speed control at 50Hz/ 60Hz input frequency.
||10 hp (7.5 kW)
||1 phase 220~240V AC
|Output voltage (Optional)
||3 phase AC 380V/ 400V/ 415V/ 440V/ 460V (Note: 440V, 460V output voltage only for the 1-phase 240V input VFD)
|Over load capacity
||150% of rated current for 1 minute, 180% of rated current for 3 seconds
Sensorless vector control;
||150% of rating torque at 1 Hz
|Speed control accuracy
||≤±0.5% of rating synchronous speed
||Digital setting: max frequency x± 0.01%;
Analog setting: max frequency x± 0.2%
||Analog setting: 0.1% of max frequency;
Digital setting: 0.01Hz
||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
||–10℃~ +40℃; VFD will be derated if ambient temperature exceed 40℃; each rise 1℃, the derate will be 5%
||5%-95%, without condensation
||≤1000m; VFD will be derated if above 1000m
|Impingement and oscillation
||Normal running:<5.9m/s2 (0.6g); Transportation:<15m/s2 (1.5g)
||–20℃~ +60℃; no dust, no corrosive gas, no direct sunlight
Tips: 1-phase 220V to 3-phase 380V VFD working principle
The principle of variable frequency drive is a power control device that applies the principle of frequency conversion technology and microelectronics technology to control AC motors by changing the working frequency of the motor.
The output waveform of VFD is simulated sine wave, mainly used in 3-phase asynchronous motor speed regulation, also called frequency converter. The VFD is mainly composed of rectifier (AC to DC), filter, VFD (DC to AC), brake unit, drive unit, detection unit and microprocessor unit. The VFD mainly adopts the AC-DC mode (VVVF frequency conversion or vector control frequency conversion), which first converts the frequency AC power into DC power through the rectifier, and then converts the DC power into AC power with controllable frequency and voltage to supply the motor.
The single phase 220 volt to three phase 380 volt VFD converts the 220V AC power supply into DC power supply through rectifier (voltage doubling rectifier), and then converts the DC power supply into 3-phase 380V AC power supply with controllable frequency and voltage to supply the motor.