Section 14.7: Performance of a Round-Rotor Synchronous Motor cont.
\ Snet.= 46.47 KW - j5.58 KVAR = 46.8/-6.85° KVA
\ qnet. = -6.85° and cos(-6.85°) = 0.993
Ergo, the overall power factor = 0.993 lead (since Qnet.< 0)
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