0 A 440 V, 60 Hz, star connected, the four-pole synchronous generator has a synchronous reactance of 0.13 Q and an armature resistance of 0.011 Q. At full load, the machine supplies 850 A at 0.85 PF lagging. Find a) the speed of rotation of the generator. b) three-phase power the generator supplying at full load? c) If the machine is working at 60 percentage of full load at a power factor of 0.85 lagging, Find the % voltage regulation? (

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(1) A 440 V, 60 Hz, star connected, the four-pole synchronous generator has a synchronous reactance of 0.13 Q and an armature
resistance of 0.011 Q. At full load, the machine supplies 850 A at 0.85 PF lagging. Find
a) the speed of rotation of the generator.
b) three-phase power the generator supplying at full load?
c) If the machine is working at 60 percentage of full load at a power factor of 0.85 lagging, Find the % voltage regulation? (
d) If the machine is working at 70 percentage of full load at a power factor of 0.85 leading, Find the voltage generated?
(ii) An armature of a three-phase alternator has 150 slots. The alternators have 6 poles. Calculate
a) B angle in radians (*
b) Distribution factor
Transcribed Image Text:(1) A 440 V, 60 Hz, star connected, the four-pole synchronous generator has a synchronous reactance of 0.13 Q and an armature resistance of 0.011 Q. At full load, the machine supplies 850 A at 0.85 PF lagging. Find a) the speed of rotation of the generator. b) three-phase power the generator supplying at full load? c) If the machine is working at 60 percentage of full load at a power factor of 0.85 lagging, Find the % voltage regulation? ( d) If the machine is working at 70 percentage of full load at a power factor of 0.85 leading, Find the voltage generated? (ii) An armature of a three-phase alternator has 150 slots. The alternators have 6 poles. Calculate a) B angle in radians (* b) Distribution factor
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