A. corona loss
B. copper loss
C. voltage drop across the line
D. surge impedance of the line
Answer: A. corona loss
Explanation:
A bundle conductor is a conductor made up of two or more sub-conductors and is used as one phase conductor.
Bundle conductors are used for transmission purpose as it helps in obtaining better voltage regulation and efficiency by reducing the inductance and skin effect present in the power lines.
Bundling of conductors leads to a reduction in line inductance.
Bundling of conductors leads to increases in capacitance.
An important advantage of bundled conductors is its ability to reduce corona discharge
Reduction in the formation of corona discharge leads to less power loss and hence improved transmission efficiency of the line.
Reduction in communication line interference.
A bundled conductor reduces the reactance of the electric transmission line.
It also reduces voltage gradient, corona loss, radio interference, surge impedance of the transmission lines.
By making bundle conductor, the geometric mean radius (GMR) of the conductor increased.
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