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-   -   100/5 current rating on Current Transfomer (https://www.askmehelpdesk.com/showthread.php?t=381045)

  • Jul 29, 2009, 03:00 AM
    prashant1988
    100/5 current rating on Current Transfomer
    What is meaning of current rating 100/5 printed on CT?? /
  • Jul 29, 2009, 03:33 AM
    KISS

    Most likely 100 Amps in 5 amps out
  • Jul 29, 2009, 03:56 AM
    tkrussell
    AKA Ratio

    Current transformer - Wikipedia, the free encyclopedia

    This must be one heck of a test your taking.

    Did you sleep through all the classes?
  • Aug 9, 2009, 11:47 PM
    Craig2009

    It simply reduces the actaul current in the conductor being measured by the ratio as noted on your CT to a more manageable level.
    i.e. if your conductor is running at say 80A, then the CT will be 100:5 (20:1) ratio, which is more manageable for metering or measurement purposes. The output side shall be 4A
  • Sep 3, 2009, 06:48 AM
    sathe1963
    In simple language this is current transformation ratio called as ct ratio.

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