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Transmission & Distribution

Transmission & Distribution
As a rough guide, the most economical transmission voltage is _____of the length of the line.

3.2kV/km
3 kV/km
1.6 kV/km
2kV/km

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Transmission & Distribution
Power system stability is least affected by

Losses
Reactance of transmission line
Input torque
Reactance of generator

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Transmission & Distribution
By using bundle conductors, the critical voltage for the formation of corona will

Decrease
Not occur
Remains same
Increase

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Transmission & Distribution
The domestic load that has unity power factor is

Fan
Mixer
Tube
Filament lamp

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Transmission & Distribution
The economic size of conductor is determined by

Ohm's law
None of the listed here
Kirchhoff's law
Kelvin's law

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Transmission & Distribution
For transmission of power over a distance of 500 km, the transmission voltage should be in the range

150 to 220 kV
60 to 100 kV
20 to 50 kV
100 to 120 kV

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