🥈 Can You Run A 380V Motor On 480V

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. On both of these grounded. tion (120 or 277 volts) is only available as single-phase. The high-voltage (208 or 480 volts) is available as either single-phase or 3-phase. It should be noted that in the 4-wire ground-ed wye systems the high-voltage is 1.73 times (the square root of 3) higher than the low voltage. Motors work based upon a V/Hz ratio. Motors for use in the US are designed around our utility voltage of 480V 60Hz, so 460/60=7.6V/Hz. Your motor is designed around 380V 50Hz, and 380/50=7.6V/Hz! As countryman said, you motor will run faster no matter what, but you don't necessarily need to buy a transformer. The U/f-ratio doesn't matter for the VFD itself, but it is very important for the motor. So you should have 230V@60Hz set as parameters. The 460/230-ratio is 2, so unless it is specified your drive might set out approximately 230V and 30Hz (as it might believe you still want to have 60Hz at 460V). 5 out of 5 based on 11 reviews | Write a review. $5,990.75. High quality three phase 10 kVA frequency converter (AC power supply), convert 480V/460V 60Hz to 380V/400V 50Hz by inner step-up & step-down transformer, adjustable output frequency & voltage suitable for industrial equipments. Input Voltage (Three Phase) *. If you only have single phase power at your house,you can still connect a three phase motor with this tutorial. Can you run a 380V motor on 480V? The drive will accept 380V, no problem. But the output voltage will be limited by that as well, standard VFDs cannot provide an output voltage that is greater than the input voltage. So if your motor is designed for 480V, you will end up with a limited speed or a loss of torque. 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. 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. Internally 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. If you use this formula you will find that using 480 V as to using 380V to power the motors will just increase to motor torque. Running a 380-volt motor at 480-volt most likely will not burn the motors up. I have done this a couple times and the motor ran just fine. It will depend on the condition of the 380 volt motors and what they are driving. dd9K.

can you run a 380v motor on 480v