engineering recuitment NHPC JE & THDC JE 2023 Mock Test Electrical Machines Alternator and Synchronous Motors Effect of Excitation on Armature Current and Power Factor
In synchronous motors, V-curves show relationship between:
1
Armature current and supply voltage
2
DC field current and AC armature current
3
Excitation current and back emf
4
Field current and power factor