Question
Download Solution PDFThe presence of ozone due to corona affects the electrical systems is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFWhen an alternating potential difference is applied across two conductors whose spacing is large as compared to their diameters, there is no apparent change in the condition of atmospheric air surrounding the wires if the applied voltage is low.
When the applied voltage exceeds a certain value (critical disruptive voltage), the conductors are surrounded by a faint violet glow called corona.
It can be detected by a hissing sound, faint luminous, and presence of ozone which is detected by odour.
The presence of ozone is harmful because it corrodes the conductor.
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