Note: This discussion is about an older version of the COMSOL Multiphysics® software. The information provided may be out of date.

Discussion Closed This discussion was created more than 6 months ago and has been closed. To start a new discussion with a link back to this one, click here.

Problem with Single Turn Coil and Multi Turn Coil

Please login with a confirmed email address before reporting spam

Dear all,

I would like to find ac resistance of a cable. Excitation has to be current. My problem is that there is no difference in cable resistance when there many cables next to each other and when there is only one cable. I was hoping there would be increase in resistance due to proximity effect but the simulations does not give that. There is no skin effect since conductor is aluminum and has radius of 7.82 mm which is smaller than the skin depth of aluminum at 60 Hz (10.923 mm). I used both Single Turn Coil and Multi Turn Coils domains. Single Turn Coil gives slightly greater resistance than Multi Turn Coil, I do not know why.
I would appreciate any help! Thanks!

Akim

0 Replies Last Post 10.11.2014, 11:52 GMT-5
COMSOL Moderator

Hello Akim Borbuev

Your Discussion has gone 30 days without a reply. If you still need help with COMSOL and have an on-subscription license, please visit our Support Center for help.

If you do not hold an on-subscription license, you may find an answer in another Discussion or in the Knowledge Base.

Note that while COMSOL employees may participate in the discussion forum, COMSOL® software users who are on-subscription should submit their questions via the Support Center for a more comprehensive response from the Technical Support team.