Calculation in the CTs

Discussion in 'General Electronics Chat' started by sudharshan.panduranga, Jul 24, 2008.

  1. sudharshan.panduranga

    Thread Starter Active Member

    Apr 10, 2008
    can any one help me about the CT what i am going to use??

    Current Ratio: 10A / 1.5A
    Secondary voltage:: 1. 60V when Primary current is 10A
    2. 20V when primary current is 1A.
    Frequency: 50Hz

    How to Calculate
    1. Primary/secondary Impedance @ 5A rated primary current for 6watt
    2. Primary/secondary Inducing voltage @ 5A rated primary current for 6watt.

    I don't have information about Turns.
  2. darla1

    New Member

    Jul 25, 2008
    you can use 1:100 CT and 16 OHM resistor you will 1.6 V when primary has 10A