1
GATE EE 2003
+2
-0.6
The ABCD parameters of a $$3$$-phase overhead transmission line are $$\,A = D = 0.9\angle {0^ \circ }.\,\,B = 200\,\angle {90^ \circ }\,\,\Omega \,\,\,$$ and $$\,\,C = 0.95\, \times \,\,{10^{ - 3}}\angle {90^ \circ }\,\,S.\,\,\,\,$$ At no-load condition, a shunt inductive reactor is connected at the receiving end of the line to limit the receiving end voltage to be equal to the sending-end voltage. The ohmic value of the reactor is
A
$$\infty \Omega$$
B
$$2000\,\Omega$$
C
$$105.26\,\Omega$$
D
$$1052.6\,\Omega$$
2
GATE EE 2003
+2
-0.6
A dc distribution system is shown in figure with load currents as marked. The two ends of the feeder are fed by voltage sources such that $${V_P} - {V_Q} = 3V.$$ the value of the voltage $${V_P}$$ for a minimum voltage of $$220$$ $$V$$ at any point along the feeder is
A
$$225.89$$ $$V$$
B
$$222.89$$ $$V$$
C
$$220.0$$ $$V$$
D
$$228.58$$ $$V$$
3
GATE EE 2003
+2
-0.6
A surge of 20 kV magnitude travels along a lossless cable towards its junction with two identical lossless overhead transmission lines. The inductance and the capacitance of the cable are 0.4 mH and 0.5 $$\mu F$$ per km. The inductance and capacitance of the overhead transmission lines are 1.5 mH and 0.015 $$\mu F$$ per km. The magnitude of the voltage at the junction due to surge is
A
36.72 kV
B
18.36 kV
C
6.07 kV
D
33.93 kV
4
GATE EE 2001
+2
-0.6
Consider the model shown in figure of a transmission line with a series capacitor at its mid-point. The maximum voltage on the line is at the location
A
$${P_1}$$
B
$${P_2}$$
C
$${P_3}$$
D
$${P_4}$$
EXAM MAP
Medical
NEET