Re: eddy current with secondary coil

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: Ed Phillips <evp-at-pacbell-dot-net> 

Tesla list wrote:
 >
 > Original poster: "Antonio Carlos M. de Queiroz" <acmq-at-compuland-dot-com.br>
 >
 > Tesla list wrote:
 >  >
 >  > Original poster: Ed Phillips <evp-at-pacbell-dot-net>
 >
 >  >         I haven't looked at your program or the results yet, but have a
 >  > question anyway.  Does it compute low-frequency inductance and is it
 >  > corrected for wire dimensions?
 >
 > Low-frequency inductances and mutual inductances. Most of the
 > formulations that I used assume uniform current in the wires,
 > radially and along them.
 >
 > Skin and proximity effects have some effect on inductances, but
 > the most serious deviation from the DC values in this case is
 > caused by the capacitances of the coils changing the currents
 > along the wires. It's easy to take this into account, if the
 > current profiles are known, but this is not implemented in my
 > program yet. The program developed by Paul Nicholson (Acmi) can
 > take the current profiles into account.
 > Eventually I will look at this problem, but I would like to find
 > first a good method to calculate the current profiles.
 >
 > Antonio Carlos M. de Queiroz

Antonio:

	Thanks for the reply.  Has anyone ever worked out the complete solution
including effect of capacitance on current distribution?  Are the
effects significant enough to be considered in normal design work?

Ed