A 3-phase, 10-kVA, 400-V, 50-Hz, Y-connected alternator supplies the rated load at 0.8 p.f. lagging. If armature resistance is 0.5 Ω and synchronous…

A 3-phase, 10-kVA, 400-V, 50-Hz, Y-connected alternator supplies the rated load at 0.8 p.f. lagging. If armature resistance is 0.5 Ω and synchronous reactance is 10 Ω, find the power angle and voltage regulation.

From the DPDC Assistant Engineer (EEE) October 2025 – Written (BUET) exam, question 5 of 7.

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