Question:-
A 3Æ full converter charges a battery from a 3Æ supply of 440V, 50Hz. The battery emf is 380V and internal resistance is 0.5 ohm. If the firing angle delay is 40°. The average load constant current is.
Option (A)
75 A
Option (B)
120 A
Option(C)
150 A
Option(D)
106 A
Correct Option:
(C)
Question Solution:
V0 =380 + I0 x 0.5
((3√ 2 x 440) /π ) cos40° = 380 +0.5I0
I0 = 150.38 A
question-answer-faq-1643