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Transmission & Distribution

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

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

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Transmission & Distribution
If the height of transmission tower is increased, which of the following parameters is likely to change?

Inductance
Resistance
Capacitance
All of the listed here

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

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

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Transmission & Distribution
If variable part of annual cost on account of interest and depreciation on the capital outlay is equal to the annual cost of electrical energy wasted in the conductors, the total annual cost will be minimum and the corresponding size of conductor will be most economical. This statement is known as

Faraday's law
Ohm's law
Kirchhoff's law
Kelvin's law

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

Increase
Decrease
Remains same
Not occur

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Transmission & Distribution
In the event of the fault, line can be opened quickly by

G. O. Switch
Fuse
All of the listed here
CB

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