SSE JE Electrical Engineering 10 Dec 2020 Papers

Question : 120 of 200

Marks: +1, -0

If the no-load voltage of a 3-phase, 440 V, 50 Hz alternator is 495 V, then its voltage regulation is:

Solution:

\E_{\g0} = 495 \V, \V_\t = 440 \V

Now percentage voltage regulation can be calculated as
Percentage voltage regulation

= {\E_{\g0} - \V_\t }/\V_\t

={495-440}/440×100

Percentage voltage regulation = 12.5%

Go to Question:

Prev Question

Next Question