(i) A 420 V, 50 Hz, star connected, the four-pole synchronous generator has a synchronous reactance of 0.1 Ω and an armature resistance of 0.013 Ω. At full load, the machine supplies 950 A at 0.85 PF lagging. Find a) the speed of rotation of the generator. (1 Mark) b) three-phase power the generator supplying at full load? (1 Mark) c) If the machine is working at 60 percentage of full load at a power factor of 0.85 lagging, Find the % voltage regulation? (1 Mark) d) If the machine is working at 70 percentage of full load at a power factor of 0.85 leading, Find the voltage generated? (1 Mark) (ii) An armature of a three-phase alternator has 120 slots. The alternators have 6 poles. Calculate a) β angle in radians (1 Mark) b) Distribution factor (2 Mark) A three-phase star-connected alternator working at 1400 KVA,50 Hz,2100 V, has an armature dc resistance of 0.12 Ω. Assume the ac resistance is 1.5 times the dc ...