transformer rating

Discussion in 'General Electronics Chat' started by jody, Apr 13, 2014.

  1. jody

    Thread Starter Member

    Nov 12, 2012
    39
    0
    hi
    i have a nicad battery charger and its rating is stated as 11.6v 1.5v 18va
    im a little confused as to what thee 1.5v relates to.
    and second it has a center tap transformer using 2 diodes so is full wave output so is the rating applied to each tap ie can i draw more current through each half of the secodary at 12v compared to if i tapped 24v from the full coil.
     
  2. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,545
    2,370
    Not 1.5v but 1.5amp, this would equate to 18va.
    Max.
     
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  3. jody

    Thread Starter Member

    Nov 12, 2012
    39
    0
    thanks
    it is actually printed as 1.55v but i a makes more sense. it has burnt a resistor so i cant tell its value so im slowly back working it.
     
  4. jody

    Thread Starter Member

    Nov 12, 2012
    39
    0
    that attachment was worth a thousand words thanks again i didnt know how to work out the idc now i do:):):):)
     
  5. alfacliff

    Well-Known Member

    Dec 13, 2013
    2,449
    428
    no, if you connect the secondary for 24 volts, the current will be cut in half. the power in watts stays the same when you change from series to paralell secondaaries.
     
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