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high voltage engineering

Authored by Jeyarohini Ramkumar

Other

University

Used 3+ times

high voltage engineering
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46 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The electrical field developed within clouds before a lightning stroke occurs can be of the order of

1.0 kV/cm

100 kV/cm

0.1 kV/cm

10 kV/cm

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The velocity of wind currents required for charge separation inside the moving clouds is of the order

1 to 5 m/s

5 to 10 m/s

10 to 20 m/s

50 to 200 m/s

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Overhead transmission lines are protected from lightning over voltages by

counter poise wires

protector tubes

ground or shield wires above the main conductors

shunt reactors

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The material used in gap less surge arresters in HV power system is

Graphite

Zinc Oxide

aluminum oxide

Silicon carbide

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The equivalent circuit of a surge arrester may be represented as

non-linear resistor

capacitor

an inductor

resistor

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The peak value of lightning stroke currents are of the order

100 A

10 A

10 to 100 kA

1000 A

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The equivalent circuit of a surge arrester may be represented as

non-linear resistor

capacitor

an inductor

resistor

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