20 hp Single Phase to Three Phase VFD
High quality customizable 20 hp 1-phase VFD (VSD) can produce three phase output power from a single phase power supply, particularly used to control AC motor speed.
|Capacity||20 hp (15 kW)|
|Shipping weight||30 kg|
|I/O Feature||Rated current||66|
|Input voltage||1 phase 220~240V AC|
|Input frequency||50Hz/ 60Hz|
|Output voltage||3 phase AC 0~input voltage|
|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;
|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: What will the output torque be when the motor’s rotating speed changes?
Starting torque and maximum torque under the driving of VFD are smaller than those directly driven by power supply.
When the motor is powered by a power frequency supply, the starting and acceleration impact are huge. When the motor is powered by a VFD, the impact would be much weaker. Power frequency starting would produce a huge starting current. When a VFD is used, the output voltage and frequency of VFD are gradually added to the motor, so the starting current impact would be much smaller.