I really wish if someone can help me in these three questions:
three -phase balanced load has a 10 ohm resistance in each of its phases. The load is supplied by a 230/400 V three-phase source.
a) Calculate the power absorbed by the load if it is connected in wye (Y)? b) Calculate the power absorbed by the load if it is connected in delta? c) What is the relation between these powers?
My attempt for these questions: a) VLn,max = 230*sqrt(2) = 325.26 VLn= (325.26)/sqrt(3) = 187.79 IL= VLn/R = 187.79 / 10 = 18.77 A Ieff= IL/sqrt(2) = 13.27 so P = sqrt(3)* VloadIeffcos() P= sqrt(3)* 230 * 13.27 *cos (0) = 5286.39 W ?
b) the same steps and P = 15934.86 W ?