The voltage regulation of synchronous generator operating at a lagging power factor is:
- None of these
Correct answer: 3. Positive
The synchronous generator operating at the lagging power factor has large positive voltage regulation.
VR = (Vnl – Vfl)/ Vfl
For lagging power factor the no-load voltage (Vnl) is quite larger then full load voltage (Vfl) and thus the voltage regulation is positive.