Sizing Isolation Transformer

Discussion in 'General Electronics Chat' started by ectmlk, Mar 26, 2012.

  1. ectmlk

    Thread Starter Member

    Feb 11, 2008
    21
    0
    Hi
    Looking at purchasing the following isolation transformer. I plan to install it in a box with overload and socket etc.

    http://docs-europe.electrocomponents.com/webdocs/002e/0900766b8002ea32.pdf

    Looking at the ratings, it is a 500VA. That is 500VA/230VAC= 2.17Amps.
    However going across the table of ratings under the Power VDE cos phi -.5 colum it gives a 2000VA rating.

    I can't seem to calculate or work out where this 2000VA comes from given a pf of .5. What does it mean in terms of current draw with a pf of .5?

    Thanks
    mlk
     
  2. panic mode

    Senior Member

    Oct 10, 2011
    1,318
    304
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