In: Electrical Engineering
A 450-V-rms, 50-Hz eight-pole delta-connected synchronous motor
operates with a developed power (including losses) of 150 kW and a
power factor of 0.9 lagging. The synchronous
reactance is Xs = 1.6 ?. How much must the field current be
increased to produce 100 percent power
factor? Assume that Br is proportional to If with no magnetic
saturation.
(I would be very grateful if you could write neatly :) )