Answer Posted / amit kumar beniwal

In AC transmission line if conductor Diameter increase then
Skin effect increase due to high concentration of current
near outer surface of the conductor & due to this cause
Corona loss also increase.SO we use bundle conductors
instead of single conductor.
BUNDLE CONDUCTOR -When we combine number of conductors as a
conductor whose Diameter is small is called Bundle conductor.

CORONA LOSS-Hissing noise & luminous glow due to high
voltage ionises nearby air which cause power loss and also
effect communication signals.

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