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WHY HUMMING SOUND OCCURED IN HT TRANSMMISSION LINES ?
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Answer Posted / met
The Corona Effect (the occurrence of bluish aura in the
transmission lines) and the Hissing Sound are both products
of the ionization of the air surrounding the conductors.
The ionization is the result of the interaction of gasses,
usually Nitrogen and other contaminant gasses, with Oxygen.
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