PPT Slide
Examples 12.4 and 12.5 cont.
The 220 V. coil’s rated current is its rated apparent power divided by its rated voltage (magnitude) = 10 KVA / 220 V. » 45.45 A. Likewise, the 110 V. coil’s rated current is 10 KVA / 110 V. » 90.91A. so the winding losses are:
Pp = (45.45 A.)2 ´ 0.25 W » 517 W. and Ps = (90.91A.)2 ´ 0.06 W » 496 W.
Section 12.8: Voltage, Current and Impedance Transformations cont.