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# need help

- To: femm@yahoogroups.com
- Subject: need help
- From: siva prasad <sivaprasad79@yahoo.co.in>
- Date: Thu, 13 Sep 2001 05:26:07 +0100 (BST)
- In-reply-to: <10c.53dd870.28cd8b1b@aol.com>

    hai,
    I am siva prasad. I am analysing 3-phase
    induction motor in ansys 5.4. in my model flux is not
    passing through the air gap. i am adding the figures i
    got. in that i have given excitation(current density)
    to only one coil in the stator slot just as an
    example.

    the following material properties i have given.

    material relative permeability

    air gap, stator coils, rotor bars 1
    stator,rotor iron 1500
    rotor supporting area(red colour in fig) 4500

    if i am giving current density to 2 or more slots then
    the flux producted by them is cancelling and i am not
    getting any flux lines. for stator shall we give any
    A.C current? or can i give different phases ,imean
    A,B,C phases and their phase angles with dc current
    density?
    if so how?
    i think material properties are not correct. please
    suggest me.
    also please give me any worked examples u have.
    or can i give different phases ,imean
    A,B,C phases and their phase angles?

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Attachment: `desktop.zip`
Description: desktop.zip

- References:
  - Re: [femm] Inductance - more confusion
    - From: dcm3c@aol.com

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