Transformer Windings

Discussion in 'General Electronics Chat' started by Deltatango, Apr 18, 2012.

  1. Deltatango

    Thread Starter New Member

    Apr 16, 2012
    8
    0
    A silly question but the more it spins in my mind the more I get confused.

    Got a burnt out US low voltage transformer.

    My mind says to halve the turns when I rewind its secondary on a similar sized 240V transformer, is this correct?

    Thanks from David :confused:
     
  2. R!f@@

    AAC Fanatic!

    Apr 2, 2009
    8,733
    759
    May be and may be not.

    Have u got any idea on transformer turns ratio formula
     
  3. Deltatango

    Thread Starter New Member

    Apr 16, 2012
    8
    0
    Sadly no, maths was never a strong point.
     
  4. #12

    Expert

    Nov 30, 2010
    16,247
    6,744
    Yes. The primary is sized to utilize the (iron) magnetic circuit to its best advantage. The secondary is very negotiable. You can pretty much choose whatever volts you want as long as you do not exceede the wattage (VA) available from the magnetic circuit.
     
  5. Deltatango

    Thread Starter New Member

    Apr 16, 2012
    8
    0
    The supply it was in claimed 6v @ 200mA and was smaller than a 500mA transformer I have, I am waiting for a 300mA type to come which should be nearer its VA factor.
    This one should also be similar in style to my faulty one, a cheap made mass produced Chinese style type, almost bare laminations with no clamp and a few layers of tape over its windings.
     
  6. the_file

    New Member

    Apr 15, 2012
    6
    0
    There is a few things about it the formulas for it.
     
Loading...