Section 14.7: Performance of a Round-Rotor Synchronous Motor cont.
Pmot. = 33 KW/3 = 11 KW (per phase) \ by Pmot. = (|Vt||E|/Xs)sind, (127 V.´ |E| / 1.27 W) ´ sin(+30°) = 11 KW, which yields |E| = 220 V. \ E = 220/+30° V.
A 220 V., 13.47 KVA, 0.707 lagging power factor load is in parallel with a three-phase wye-connected round-rotor synchronous motor having a synchronous reactance of 1.27W. The motor draws 33 KW at a power angle of 30°. Calculate the reactive power of the motor and the net (overall) power factor of the motor-load combination