The inductance of a power transmission line increases with

The inductance of a power transmission line increases with

Right Answer is:

Increase in spacing between the phase conductors

SOLUTION

The inductance of transmission line is given by

$L = \dfrac{{{\mu _o}}}{\pi } \times \ln \left( {\dfrac{D}{{{r^\iota }}}} \right)$

Where

D = distance between the conductor

r’ = radius of the conductor

$L \propto \ln \left( {\dfrac{D}{{{r^\iota }}}} \right)$

Hence inductance is directly proportional to the distance between the conductor. If we increase the spacing between the conductors then inductance will also increase.

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