The electricity of single phase 110v, 120v, 220v, 240v, and three phase 380v, 400v, 415v, 440v, 460v, 480v AC power, are 50Hz or 60Hz frequencies. The speed of 50Hz (60Hz) 2 poles synchronous motor generator is 3000rpm (3600rpm). AC power frequency is determined by the pole number of the motor generator p and speed n, Hz = p*n/120. L-N), most of the existing servers today can be powered with 240V single-phase (L-N) without any intermediate transformation. Removing the need for a transformer streamlines the power path and can increase efficiency approximately 1.5 percent. The adoption of a 415/240VAC distribution model also can yield additional savings at The require dmotor current would be about half of the values listed on the nameplate. If the VFD is capable of 73 amps output with a 415 volt supply, it is designed for a motor rated about 44 kW. It would be wasted on a 22 kW motor, but if you already have it and you can set it up to provide 220 V at 60 Hz or 200 V at 60 Hz, that would be fine Using a 3 phase step down transformer in reverse. I have a 30kVA transformer with primary 480V delta to 208V Wye secondary. I am relocating to a building that has 208 service, and would like to use the above transformer in reverse, so that I can run my 480V equipment without other conversion. This transformer used in reverse to produce 480V The output AC voltage will always be lower thean the input voltage. If you run the motor on 30 Hertz output the drive will put out 60% output voltage but your torque should be about the same. If a motor is running too slowly either the cooling fan will not blow enough air or the induced voltage in the rotor will drop to zero. 5254.9. 3853.6. 843.0. 613.1. 486.3. A KW and KVa amperage chart will help you choose the right generator size for your application. This guide will show you the amperage at each voltage and KW we offer at Affordable Generator. e5tHE0. I would agree it will probably be fine. It may be that the manufacturer produces motors for 400V, 415V and 440V (the three common voltages in that region) and has a single production line for all three, in which case the motor will be exactly the same as a 415V motor. Can I run a 380V motor on 480V? Can you run a 380V motor on 480V? The drive 600Y/347v 3-phase 4-wire or 600v delta. Naturally, all the line voltages above are the product of the phase voltages x root 3 (1.732). This is a mathematical given, as the phase voltages are 120deg displaced from each other and are non-linear loads. For some reason, American and overseas manufacturers refer to the higher voltage as "575" volts. A motor designed for 380V 50Hz, as commonly used in the EU, is therefore designed for a V/Hz ratio of 7.6:1. If you supply it with 480V (which is what a 460V motor is designed for), the ratio is 8:1, virtually the same. the motor will spin 20% faster because of the difference in frequency, but that can't be helped, you bought 50Hz equipment. 30 hp VFD, 1-Phase 220V to 3-Phase 380V VFD. $2,455.97. SKU: GK3000-CS0220G. 30 hp VFD for sales, converts 1-phase 220V input to 3-phase 380V output, 45A rated current, 50Hz/ 60Hz input frequency, 0-400Hz output frequency. It can be used as a motor speed controller and a frequency inverter. Quick View. If you had 2 or all 3 phases, corner-corner voltage is 400V. That is deemed "good enough" to satisfy the light industrial purposes of American 480V, which means 480V / "440V" does not exist. On 4 other continents, the European style power is used. However it's common for phase-neutral voltage to run at 220V instead of 230V. That is, the 380V motor could operate on a 400V distribution system. However, for the 440V case the usual distribution system voltage is 480V. And, It can be expected to increase 10% to 528V, At this value, in fact, any voltage above say 440V will jeopardize operation.

can you run a 380v motor on 480v