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Welcome to 390 volts to watts, our post about the 390 volt to watt conversion.
Here we show you how to convert three hundred and ninety volts to watts using the formulas for DC as well as AC circuits.
If you have been wondering how many watts is 390 volts, or if you have been looking for 390v in watts, then you are definitively right here. 🙂
We not only explain you the conversion of 390 volts to watts, but also feature a voltage to watt calculator you will like.
How many Watts is 390 Volts
The answer to the question how many watts is 390 volts depends on the flow of electric charge, either one-directional in direct current (DC), or bidirectional in case of alternating current (AC).
In case of 390 volts in an AC circuit, the power factor PF and number of phases make a difference, in addition to the connection scheme of the wires in case of 3-phase AC.
See the 390 volts to watts formulas in the next section, and make sure to check out our converter which you can find after the voltage to wattage example calculations.
390 Volts to Watts Conversion
To convert 390 volts to watts, determine your electric current in amperes (A), then apply the formula below which corresponds to your circuit:
AC, 1 Phase: W = PF × [A] × [390 V]
AC, 3 Phase, Line to Line (L-L): W = √3 × PF × [A] × [390 V]
AC, 3 Phase, Line to Neutral (L-N): W = 3 × PF × [A] × [390 V]
To learn what the power factor, line to line and line to neutral voltage in the context of changing 390 volts to watts stand for, read our article volts to watts, located in the header menu.
For the example 390 volts to watts conversions below, we assume a power factor of 0.5 and an electric current of 1.5 amperes. Therefore, for 390v to watts we get:
- Direct current (DC): W = [1.5 A] × [390 V] = 585 watts
- Alternating current (AC), 1 Phase: W = 0.5 × [1.5 A] × [390 V] = 292.5 watts
- Alternating current (AC), 3 Phases, L-L: W = √3 × 0.5 × [1.5 A] × [390 V] = 506.62 W
- Alternating current (AC), 3 Phases, L-N: W = 3 × 0.5 × [1.5 A] × [390 V] = 877.5 watts
Remember, these values for 390 volts in watts are example calculations under the assumption PF = 0.5 and I = 1.5 A. For your power factor, amperage and circuit, use our calculator.
Enter 390 in the Volts field, then choose your circuit from the drop-down menu. If requested, insert the PF. Next, in the Amps field, enter your electric current, then hit Convert.
If you wish to start 390 volts to watts over, first hit Reset, then proceed as explained above.
Besides 390 volt to watt, similar voltage to power conversions on our site include:
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390v to Watts
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