1
GATE EE 2010
MCQ (Single Correct Answer)
+2
-0.6
Consider a three-core, three phase, $$50$$ $$Hz$$, $$11$$ $$kV$$ cable whose conductors are denoted as $$R, Y$$ and $$B$$ in the figure. The inter-phase capacitance $$\left( {{C_1}} \right)$$ between each pair of conductors is $$0.2$$ $$\mu F$$ and the capacitance between each line conductor and the sheath is $$0.4$$ $$\mu F$$ . The per-phase charging current is GATE EE 2010 Power System Analysis - Parameters and Performance of Transmission Lines Question 31 English
A
$$2.0$$ $$A$$
B
$$2.4$$ $$A$$
C
$$2.7$$ $$A$$
D
$$3.5$$ $$A$$
2
GATE EE 2010
MCQ (Single Correct Answer)
+2
-0.6
A $$50$$ $$Hz$$ synchronous generator is initially connected to a long lossless transmission line which is open circuited at the receiving end. With the field voltage held constant, the generator is disconnected from the transmission line. Which of the following may be said about the steady state terminal voltage and field current of the generator?
A
The magnitude of terminal voltage decreases, and the field current does not change.
B
The magnitude of terminal voltage increases, and the field current does not change.
C
The magnitude of terminal voltage increases, and the field current increases.
D
The magnitude of terminal voltage does not change, and the field current decreases.
3
GATE EE 2010
MCQ (Single Correct Answer)
+2
-0.6
Consider a three-phase, $$50Hz,$$ $$11$$ $$kV$$ distribution system. Each of the conductors is suspended by an insulator string having two identical porcelain insulators. The self capacitance of the insulator is $$5$$ times the shunt capacitance between the link an the ground, as shown in the figure. The voltage across the two insulators are GATE EE 2010 Power System Analysis - Parameters and Performance of Transmission Lines Question 30 English
A
$${e_1} = 3.74\,kV,\,{e_2} = 2.61\,kV$$
B
$${e_1} = 3.46\,kV,\,{e_2} = 2.89\,kV$$
C
$${e_1} = 6.0\,kV,\,{e_2} = 4.23\,kV$$
D
$${e_1} = 5.5\,kV,\,{e_2} = 5.5\,kV$$
4
GATE EE 2009
MCQ (Single Correct Answer)
+2
-0.6
Match the items List-$${\rm I}$$ (To) with the items in List-$${\rm II}$$ (Use) and select the correct answer using the codes given below the lists.

List-$${\rm I}$$
$$A.$$ improve power factor
$$B.$$ reduce the current ripples
$$C.$$ increase the power flow in line
$$D$$ reduce the Ferranti effect

List-$${\rm II}$$
$$1.$$ shunt reactor
$$2.$$ shunt capacitor
$$3.$$ series capacitor
$$4.$$ series reactor

A
$$a \to 2,\,\,b \to 3,\,\,c \to 4,\,\,d \to 1$$
B
$$a \to 2,\,\,b \to 4,\,\,c \to 3,\,\,d \to 1$$
C
$$a \to 4,\,\,b \to 3,\,\,c \to 1,\,\,d \to 2$$
D
$$a \to 4,\,\,b \to 1,\,\,c \to 3,\,\,d \to 2$$
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