Differences between revisions 7 and 8
Revision 7 as of 2018-07-17 06:02:23
Size: 1103
Comment:
Revision 8 as of 2018-07-17 06:04:27
Size: 1118
Comment:
Deletions are marked like this. Additions are marked like this.
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|| || K || $\mu_r$ || $\rho$ $\Omega$-m  || 60 Hz || 400 Hz || 1 KHz || 5 KHz || 20 KHz || 200 KHz ||
|| 3% Si Transformer Steel || 300 || 700 || || || || || || || ||
|| 3% Si Transformer Steel || 700 || 700? ||     || || || || || || ||
|| || K || $\mu_r$ || $\rho~~\Omega$-m || 60 Hz || 400 Hz || 1 KHz || 5 KHz || 20 KHz || 200 KHz ||
|| 3% Si Transformer Steel || 300 || 700 || 5e-7 || || || || || || ||
|| 3% Si Transformer Steel || 700 || 700? || 5e-7 || || || || || || ||

Skin Depth

\delta = \sqrt{ 2 \rho / \omega \mu_r \mu_0 } . . . . . 2 / \mu_0 = 1.59e6 m/H

Material

Temp

perm.

resis.

depth (m) at frequency

K

\mu_r

\rho~~\Omega-m

60 Hz

400 Hz

1 KHz

5 KHz

20 KHz

200 KHz

3% Si Transformer Steel

300

700

5e-7

3% Si Transformer Steel

700

700?

5e-7

Aluminum

300

1

Aluminum

700

1

Copper

300

1

Copper

700

1

SkinDepth (last edited 2018-07-18 17:58:39 by KeithLofstrom)