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smiddleton
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Does anyone of a transformer that can step up 120vac to 460vac? Or do I need to use two transformers and step it up twice? It is powering a 10hp 460vac 3phase ac motor. Thanks.
First question, the 120V AC you plan to use...is that available in 3 phases?smiddleton said:Does anyone of a transformer that can step up 120vac to 460vac? Or do I need to use two transformers and step it up twice? It is powering a 10hp 460vac 3phase ac motor. Thanks.
Normal ac outlet in office buildingNascentOxygen said:First question, the 120V AC you plan to use...is that available in 3 phases?
I think that's "No three phase available" answer? So that's a serious setback to your planning.smiddleton said:Normal ac outlet in office building
True. I would need some big caps, it's about 10000 watts to power the motor how we want.Averagesupernova said:I am also trying to figure out how the OP figures a regular office building 120 volt outlet will provide 3 phase.
The required transformer size can be calculated by multiplying the motor's power in kilowatts (kW) by 1.73 (for three-phase power) and dividing the result by the incoming line voltage. For a 10HP motor, this would be (10 x 0.746 kW x 1.73) / 460V = 0.058 kVA or 58 VA.
The transformer is used to step down the high voltage of the power source (usually from the utility grid) to a lower voltage that is suitable for the motor. It also helps to convert AC power from one voltage level to another.
Yes, you will need a three-phase transformer specifically designed for three-phase power systems. These transformers have three sets of primary and secondary windings, unlike single-phase transformers which only have two sets.
No, single-phase transformers are not suitable for powering a 3-phase motor. They only have two sets of windings and cannot handle the higher voltage and current requirements of a 3-phase system.
In addition to calculating the required size based on the motor's power and incoming voltage, you should also consider the motor's starting current and the transformer's efficiency. It's best to consult with a professional or refer to the manufacturer's specifications to ensure the correct transformer is selected for your specific motor and application.