Select the correct statement for a medium overhead transmission line.

Correct option is D

$$\text{Given:} \\[4pt]\bullet \; \text{Type of line: Medium overhead transmission line (length between 80 km to 200 km)} \\[4pt]\bullet \; \text{Power formula for a 3-phase system:} \\[6pt]\text{Formula Used:} \\[4pt]P = \sqrt{3} V_L I_L \cos \phi \Rightarrow I_L = \frac{P}{\sqrt{3} V_L \cos \phi} \\[10pt]\textbf{Where,} \\[4pt]\bullet \; P = \text{Power} \\[4pt]\bullet \; V_L = \text{Line voltage} \\[4pt]\bullet \; I_L = \text{Load current} \\[4pt]\bullet \; \cos \phi = \text{Load power factor} \\[10pt]\textbf{Explanation:} \\[4pt]\text{From the above formula,} \\[4pt]I_L \propto \frac{1}{\cos \phi} \\[10pt]\text{This clearly shows that the load current is inversely proportional to the load power factor.} \\[4pt]\text{Therefore, as the power factor increases, the current decreases, and vice versa.}$$​​