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# Re: [femm] Re: Calculating skin effect using FEMM?

- To: femm@egroups.com
- Subject: Re: [femm] Re: Calculating skin effect using FEMM?
- From: David Meeker <dmeeker@foster-miller.com>
- Date: Mon, 22 Jan 2001 09:40:07 -0500
- Organization: Foster-Miller, Inc.
- References: <94h8m4+d49b@eGroups.com>

    k.gregory@lboro.ac.uk wrote:

    > Dave,
    >
    > Long time no e-mail but I have been using FEMM a lot lately and
    > recommending it to everyone!
    >
    > Anyway, I'm a little confused about a bit of one of your replies,
    > maybe I'm being a bit stupid, but you said
    >
    > The multiple bars per phase illustrates an interesting feature of
    > the "circuit" properties--if you label multiple blocks with the same
    > circuit, it assumes that all blocks are driven in series, and that
    > the _total_ current in _all_ blocks that are defined with a
    > particular circuit property adds up to meet the constraint. If you
    > examine the two bars composing each phase, you will find that each
    > bar carries a slightly different current, but the total current adds
    > up to be the desired phase current.
    >
    > If the blocks are driven IN SERIES then shouldn't they carry the same
    > current or if they add up to the right total current then aren't they
    > in parallel?
    >
    > Keith.

    Whoops--thanks for catching this. I meant to say "in parallel". When
    you apply the same "circuit" property to multiple blocks, it connects all
    of the block in parallel.

    Thanks again for pointing this out. Perhaps I should read what I type
    before I hit "send"...

    Dave.

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    org:Foster-Miller, Inc.;Electrical and Electronic Systems Group
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    email;internet:dmeeker@foster-miller.com
    title:Senior Engineer
    adr;quoted-printable:;;350 Second Avenue=0D=0A;Waltham;MA;02451-1196;USA
    fn:David Meeker, Ph.D.
    end:vcard

- References:
  - Re: Calculating skin effect using FEMM?
    - From: k.gregory@lboro.ac.uk

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