Help for current transformer

Discussion in 'General Electronics Chat' started by miloboy, Nov 8, 2010.

  1. miloboy

    Thread Starter New Member

    Jun 1, 2010
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    i am wonder what is the output of current transformer with 30/5A ratio ? is that output with current or voltage ? coz i need it for measuring the current and to PIC controler
     
  2. beenthere

    Retired Moderator

    Apr 20, 2004
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  3. miloboy

    Thread Starter New Member

    Jun 1, 2010
    19
    0
    yes.. i read it .. so if i wan to measure the current interm of voltage .. i shud use a very small resistance ? what resistor is that .. can i use the resistor what we use in circuit board normally 1/2W resistor
     
  4. Jaguarjoe

    Active Member

    Apr 7, 2010
    770
    90
    Maybe this will provide more help:

    http://www.kele.com/templates/content.aspx?id=4633

    Poke around the support section of the Kele website and you will find 2 or 3 more articles about CT accuracy and safety. Off the top of my head, I don't think a 1/2 watt resistor will be adequate.
     
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