A motor provides torque based on a direct relationship to the ratio of voltage and frequency it was designed for, typically +-10%. So a motor designed for 380V 50Hz is a ratio of 7.6:1, a motor designed for 460V 60hz is also a ratio of 7.67:1, so virtually identical. yes, 208 v. equipment is a little smaller and cheaper, and 208v. is slightly safer to use. However, 480v. runs on half the amperage 208v. equipment does, which means equipment or devices cost
Many people run in to problems with phase conversion when they get a new or used motor and find that the three-phase motor doesn’t play well with their single-phase power. Yes, a VFD can power a three-phase motor with a single-phase input power supply, but phase conversion introduces many considerations that normally don’t factor in to
If not, you're going to need at least a VFD. There's a chance the motor is series - parallel and can be wired to run at half voltage (VFDs can reduce but not raise the voltage); if not, you'll need either a 240v motor or a step up transformer 208V Single Phase and 208V 3 Phase power are easy to use, but hard to understand. If you want a simple understanding but aren’t electrically minded, start with a simple analogy you can build on. I like the bicycle analogy. Bicycle Analogy . A tandem bicycle has two people providing power with four legs (pedals).

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.

A 480V to 500V, 50Hz or 600V, 60Hz, 3 wire, rural supply, can be supplied from the special Winding 17, by connecting into series zig-zag as shown in the drawing on the previous page. The maximum rating available from Winding 17 in this series zig-zag connection is limited to the following. S0/S1 range 50% of the 3-phase rating

You can find this information on a label on the back of the appliance. Let's say this example microwave has a 1000 W 1000 \ \text{W} 1000 W wattage paired with a 0.72 0.72 0.72 power factor. Last, we input the data in the breaker size calculator (or in the respective equation if we're solving manually) using the advanced mode of the calculator.

\n can you run a 380v motor on 480v
GoHz 480V 60Hz to 380V 50Hz Converter. GoHz frequency converter can change 480V 60Hz to 380V 50Hz, also can be connected to single phase loads. If the peaking current is 16amps (especially during starting time), a 15kVA three phase converter will be suitable, rated current at 20.8amps. But we think the price maybe too high for it. One potential issue is however, that when you are running a 240V or 208V motor when the VFD is powered by 480V input, the VFD must "squeeze" more pulses into the PWM pattern to make the the 620VDC pulses only end up at 240VAC RMS. That also means that the motor insulatiuon is going to see the same kinds of stresses as a 480V motor would. Instead of reconnecting the motor for 220V and trying to find an electrician savvy enough to set you up with a buck-boost transformer, simply get a very commonly available 208 to 480V three phase transformer and feed the motors with 480V 3 phase. 480V 3 phase has a V/Hz ratio of 8:1, close enough to the 7.6:1 design ratio (within 10%) to not If it's an old motor I would probably run it as long as it will last at 480V and then have it rewound (480V) or purchase a 480V motor. If you know who owned it before you could call and ask if they ran it at 480V. 4 Step Selection. 1) From the top row of the chart, find the high and low voltage combination that is closest to the one you require. 2) Move down that column to the kVA or Ampere rating equal to or greater than the rating required by the load. 3) From the far left column, obtain the transformer catalog model.
When a motor nameplate indicates that a motor is rated 220-440, 230-460, or 240-480, it means the motor is designed to run at either the low or high voltage rating. The motor nameplate will indicate the connection diagram for the low or high voltage. 220-240 and 440-480 are nominal voltages.
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    • can you run a 380v motor on 480v