Section 14.7: Performance of a Round-Rotor Synchronous Motor cont.
Then Sload = 13.46/q KVA where q = cos-1(0.707) = 45°
\ Sload = 13.46/ 45° KVA and Snet.= Sload + Smot. yields Snet.= (13.47 KW + j13.47 KVAR) + (33 KW - j19.05 KVAR)
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