engineering recuitment JSSC JE Mock Test 2023 Electrical Machines Alternator and Synchronous Motors Effect of Excitation on Armature Current and Power Factor
If the alternator is over-excited and it delivers reactive power to the infinite bus, then under this condition:
1
the alternator is operating at unity power factor
2
the alternator is operating both at leading and lagging power factor
3
the alternator is operating at leading power factor
4
the alternator is operating at lagging power factor