1
GATE EE 1999
MCQ (Single Correct Answer)
+1
-0.3
An overhead line having a surge impedance of $$400$$$$\Omega $$ is connected in series with an underground cable having a surge impedance of $$100$$$$\Omega $$. If a surge of $$50$$ $$kV$$ travels from the line end towards the cable junctions, the value of the transmitted voltage wave at the junction is
A
$$30$$ kV
B
$$20$$ kV
C
$$80$$ kV
D
$$-30$$ kV
2
GATE EE 1999
MCQ (Single Correct Answer)
+1
-0.3
Corona losses are minimized when
A
Conductor size is reduced.
B
Smooth conductor is reduced.
C
Sharp points are provided in the line hardware.
D
Current density in conductors is reduced.
3
GATE EE 1998
MCQ (Single Correct Answer)
+1
-0.3
The reflection coefficient for the transmission line shown in figure at $$P$$ is GATE EE 1998 Power System Analysis - Parameters and Performance of Transmission Lines Question 87 English
A
$$ + 1$$
B
$$ - 1$$
C
$$0$$
D
$$0.5$$
4
GATE EE 1998
MCQ (Single Correct Answer)
+1
-0.3
Series capacitive compensation in $$EHV$$ transmission lines is used to
A
Reduce the line loading
B
Improve the stability of the system
C
Reduce the voltage profile
D
Improve the protection of the line.
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