Electrical Engineering > GATE 2026 > Synchronous Machines
The figure shows the single-line diagram of a synchronous generator delivering P = 50 MW of power at unity power factor to an infinite bus.
Is denotes the stator current phasor. If the field excitation is increased, which one of the following options correctly describes its effect on the stator current, power factor, and load angle of the machine?
A
Stator current increases, power factor becomes lagging, load angle remains the same
B
Stator current decreases, power factor becomes leading, load angle remains the same
C
Stator current increases, power factor becomes lagging, load angle decreases
D
Stator current increases, power factor becomes leading, load angle increases

Correct : a

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