Electrical Engineering - Skin Effect Ratio

Author

Skin Effect Ratio

Govind

2007-06-24, 9:25 am

What it mean that skin effect ratio in Bus Bars ( Both LV and HV
systems ) vendors are specifying that skin effect ratio = 1. Whether
it mean that when both AC or DC is conducted by that bus bar the
rating of the bus bar is same ?. Please clarify the above

John Gilmer

2007-06-27, 9:25 am

"Govind" <govindarul@gmail.com> wrote in message
news:1182686249.589097.203760@d30g2000prg.googlegroups.com...
> What it mean that skin effect ratio in Bus Bars ( Both LV and HV
> systems ) vendors are specifying that skin effect ratio = 1. Whether
> it mean that when both AC or DC is conducted by that bus bar the
> rating of the bus bar is same ?. Please clarify the above.

I guess they mean that the bus bar is less than 1" or so in diameter or (if
a large tube) the walls are less than 1/2" thick (more or less). At "line"
frequencies, the "skin depth" is on the order of 1/2" inch. My numbers are
only "ball park" accurate.

>

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