Results 1 to 2 of 2

Thread: Power factor correction

  1. #1
    Full Member
    Join Date
    Mar 2013
    Location
    KZN
    Posts
    61
    Thanks
    0
    Thanked 0 Times in 0 Posts

    Power factor correction

    The Note I'm 6.14.1.1 mention the aspect of power factor correction when it comes to discharge lamps. How would we go about finding out if the power factor is correct and what is the correct power factor?

  2. #2
    Diamond Member AndyD's Avatar
    Join Date
    Jan 2010
    Location
    Cape Town
    Posts
    4,404
    Thanks
    513
    Thanked 855 Times in 688 Posts
    The luminaires should have their power factor stated on the info plate. You can also refer to manufacturers data on their website or via their reselling agents to get the PF or use a test instrument to measure it.

    'Correct' power factor would be cos θ equal to 1. For ballasted lighting you'd usually aim for cos θ of at least 0.9 and many discharge light fittings come with built-in power factor correction components to achieve this figure. If it's an old uncorrected ballast then the cos θ value could be as low as 0.5 in which case correction should be fitted.
    _______________________________________________
    I am special and so is Vanash.
    _______________________________________________

Similar Threads

  1. power factor correction
    By murdock in forum Energy and Resource Conservation Forum
    Replies: 2
    Last Post: 04-Dec-16, 04:12 PM
  2. Difference between: Power factor correction, Voltage regulation and Voltage stabisizi
    By BigRed in forum Electrical Contracting Industry Forum
    Replies: 8
    Last Post: 08-Feb-10, 09:29 PM
  3. power factor correction
    By murdock in forum Electrical Contracting Industry Forum
    Replies: 0
    Last Post: 03-Aug-09, 04:55 PM
  4. Power Factor
    By Tvandermescht in forum Electrical Load Shedding Forum
    Replies: 1
    Last Post: 17-Jun-08, 03:22 PM
  5. Power Factor Correction
    By rohor in forum Electrical Load Shedding Forum
    Replies: 2
    Last Post: 29-Jan-08, 11:54 AM

Did you like this article? Share it with your favourite social network.

Did you like this article? Share it with your favourite social network.

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •