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Power Factor Correction

Discussion in 'Hobby Electronics' started by Nathan L,, Dec 17, 2004.

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  1. Nathan L,

    Nathan L, Guest

    From my days studying electronics (or as I recall), PFC was basically
    implemented to correct usages in current for the meter man.

    How true is that? Is there any performance to be gained with the device
    after correction?
     
  2. Not at all, AFAIK. Australian meters (almost?) universally measure
    true RMS power. PFC is necessary to reduce resistive losses in
    delivering that power.
     
  3. Franc Zabkar

    Franc Zabkar Guest

    This advice from Energy Australia:

    ===================================================================
    Most residential classification customers are metered by a spinning
    disc meter, or a basic electronic meter which does not have enough
    "smarts" in the meter device to enable billing to be carried out at a
    KVA pricing.

    Currently small customers are billed on KWh pricing, and KVA Demand
    pricing usually relates to large commercial and industrial
    installations where poor power factor may impact upon the EA network,
    and there may be an economic billing benefit in the customer pricing
    to ensure that Power factor is closer to Unity.
    ===================================================================


    - Franc Zabkar
     
  4. Nathan,

    In a nutshell:
    Power factor correction is used to make up for the difference
    in apparent power used as opposed to actual power used.
    i.e. change the reactance of the circuit, the phase relationship
    of voltage and current......

    A sparky told me that because a lot more people are now
    installing fluorescent lights that the manufacturers of
    said lights now install Power Factor correction caps in
    the fittings as a mater of course.

    Merry XMAS all,
    Mitchell

    REF:
    http://www.seav.vic.gov.au/ftp/advice/business/info_sheets/Power_Factor_Correct_1_0.pdf
     
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