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GATE EE 2001

MCQ (Single Correct Answer)

-0.3

A lossless radial transmission line with surge impedance loading

Takes negative VAR at sending end and zero VAR at receiving end.

Takes positive VAR at sending end and zero VAR at receiving end.

Has flat voltage profile and unity power factor at all points along it.

Has sending end voltage higher than receiving end voltage and unity power factor at sending end.

GATE EE 2001

MCQ (Single Correct Answer)

-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 GATE EE 2001 Power System Analysis - Parameters and Performance of Transmission Lines Question 48 English

GATE EE 2001 Power System Analysis - Parameters and Performance of Transmission Lines Question 48 English

$${P_1}$$

$${P_2}$$

$${P_3}$$

$${P_4}$$

GATE EE 2001

MCQ (Single Correct Answer)

-0.6

The conductors of a $$10$$ km long, single phase, two wire line are separated by a distance of $$1.5$$ m. The diameter of each conductor is $$1$$ cm. If the conductors are of copper, the inductance of the circuit is

$$50.0$$ mH

$$45.3$$ mH

$$23.8$$ mH

$$19.6$$ mH

GATE EE 2001

Subjective

-0

A 132 kV transmission line AB is connected to a cable BC. The characteristic impedances of the overhead line and the cable are 400$$\Omega $$ and 80$$\Omega $$ respectively. Assume that these are purely resistive. A 250 kV switching surge travels from A to B.

(a) Calculate the value of this voltage surge when it first reaches C.

(b) Calculate the value of the reflected component of this surge when the first reflection reaches A.

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