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Name: Unknown
Status: N/A
Age: 40s
Location: N/A
Country: N/A
Date: 2002
Question:
What is corona effect. I have seen in power house that hissing sound often comes mostly from a dam station from high tension line ie 132 Kv. Line and sparks were observed going one place to another place though its length.

Replies:
When the voltage is high enough, electrons are attracted to ground (at lower potential) with sufficient energy to ionize air. It is this breakdown that produces the corona.

Vince Calder


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