Three Phase Electric Power Formulas

Power 3 phase kw therefore per phase kw 3 kva per phase kw per phase power factor kw 3 x pf phase voltage vll 3.

Three phase electric power formulas.

Power formulas in dc ac single phase and ac three phase circuits. Three phase electric power is a common method of alternating current electric power generation transmission and distribution. A three wire three phase circuit is usually more economical than an equivalent two wire. Ac active reactive and apparent power real imaginary and apparent power consumption in ac circuits.

Three phase power is a widely used method for generating and transmitting electricity but the calculations you ll need to perform are a little more complicated than for single phase systems. Ac circuit voltage current and power in an ac circuit alternating current is generated from a sinusoidal. You can easily find electric power in watts by using the following power formulas in electric circuits. Back to basic below are the simple power formulas for single phase ac circuit three phase ac circuits and dc circuits.

That said there isn t much extra you have to do when working with three phase power equations so you ll be able to solve whatever three phase. The kw in your formula is the three phase kw so i think you should be using 746 not 249. Three phase electric power v i 1 732 pf where v voltage i current pf power factor 0 8 three phase electric power calculation is made easier here using this online electrical calculator. I m not sure if this helpful but i will derive the formulae using the above method so you can see the two tie together.