Inductors in parallel...

Discussion in 'General Electronics Chat' started by Externet, Jun 16, 2008.

  1. Externet

    Thread Starter AAC Fanatic!

    Nov 29, 2005
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    Hi.

    Ten equal non-coupled inductances in parallel yield a total of one tenth of the inductance, is that right ?

    The power factor correction needed in many factories increases with the number of motors in parallel they operate, is that right ?

    Seems the more inductive motors in parallel, the less the inductance, but the need for power factor correction is not less with less inductance.

    Where is the catch :confused:
     
  2. Wendy

    Moderator

    Mar 24, 2008
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    Real current (as in non phase related load)?
     
  3. cumesoftware

    Senior Member

    Apr 27, 2007
    1,330
    10
    Yes.

    About the power factor, I can't tell you anything. I confess that I know nothing about power factors. I don't even know the concept.
     
  4. thingmaker3

    Retired Moderator

    May 16, 2005
    5,072
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    As inductance decreases, current increases in direct proportion. Power is proportional to current, and therefore increases as well.
     
  5. Externet

    Thread Starter AAC Fanatic!

    Nov 29, 2005
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    That explains it; ten motors at say 20 Amperes each is 200 Amperes to account, even for a tenth of inductance. The 200 figure raises the power factor

    A single 20 Amperes motor, even having ten times the inductance does not raise the power factor by the same figure product, it is only ~a tenth of the above case.

    Then, the amount of inductance in the load is not what makes the bulk of the power factor, the current is... if I got it.

    Thanks thingmaker3 !
     
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