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why humming sound occured in HT transmission lines.
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Answer Posted / mridupawan,assam
hissing sound produce whenever Corona occurs. But the
continuous humming occurs in high voltage transmission line
is due to the hysteresis losses coused by alternate
magnetic reversal of the conductor molecule from north pole
to south pole and vice versa. Magnetic reversal took place
under the influence of alternating voltage.This is just like
the humming in a transformer core.
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