1
GATE EE 1992
Fill in the Blanks
+1
-0
In the circuit shown in fig, $$L$$ is large and the average value of $$'i'$$ is $$100A.$$ The thyristor is gated in the half cycle of $$'e'$$ at a delay angle $$\alpha $$ equal to ___________.
$$e\left( t \right) = \sqrt 2 .00\,\,\sin \,\,314t$$ GATE EE 1992 Power Electronics - Single and Three Phase Rectifier Question 16 English
2
GATE EE 1992
MCQ (Single Correct Answer)
+1
-0.3
The inductance of a power transmission line increases with
A
Decreases in line length
B
Increase in diameter of conductor
C
Increase in spacing between the phase conductors.
D
Increase in load current carried by the conductors.
3
GATE EE 1992
MCQ (Single Correct Answer)
+1
-0.3
The selection of size of conductors for a distributor in a distribution system is governed by
A
Corona loss
B
Temperature rise
C
Radio interference
D
Voltage drop
4
GATE EE 1992
MCQ (Single Correct Answer)
+1
-0.3
A Buchholz relay is used for
A
Protection of a transformer against all internal faults
B
Protection of a transformer against external faults
C
Protection of a transformer against both internal and external faults
D
Protection of induction motors.
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