In this video, I try to explain to you what you have to do to run such motor from a single phase.
The calculator is designed to accept the total line voltage and current of the combined three cables. The equation for the area of a single wire is modified to: A = \frac {\sqrt 3 I \varrho L} {V} A = V 3I ϱL. The factor of \sqrt 3 3 is needed to convert between the system's phase current and line current.
Since this transformer has a ratio of 1:2 the load current on the 480V side just has to be doubled. 85 x 2 = 170A on the primary. 40.8 KVA transformer. To prove this just find the KVA of both
Can you use 400V 50Hz on 480V 60Hz power source? 400v 50Hz equipment on 480v 60Hz power system An induction motor at 0.75 kW (approx. 1 HP), 50 Hz, 400v AC, set the motor Hz in the VFD to 60, then the Motor Voltage to 480v AC. This will increase the motor output to approx. How much voltage do I need for a 50 Hz motor?
The formula to convert kVA to amps is: [1] I (A) = S (kVA) × 1,000 V (V) This means that the current I in amps is equal to the apparent power S in kVA times 1,000, divided by the RMS voltage V . For example, let’s find the current for a 220-volt circuit with 25 kVA of apparent power. I(A) = 25 kVA × 1,000 220 V. I(A) = 113.64 A. There are plenty of DIY approaches you can google if you like to tinker. There will be two run caps plus a starting cap. Image below is from this website, which has detailed info on how to calculate the capacitor values. Rotary phase converter. This involves running a (often larger) 3-phase idler motor as a kind of generator from the singleInternally a VFD runs on DC. Most VFDs will accept single phase outright and convert to three phase as long as you double the rating. So for a 10 kw motor you need a 20 kw drive. There are also voltage doubler drives. So they will convert say single phase 120 to 3 phase 230. These are the ones that are used for training/demo drives.
1399FO.