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Total burden on current transformer

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    Total burden on current transformer

    A watt-hour meter draws 1.5 W and 11.3 VAR from a potential transformer and 1.88 W and 1.8 VARS from a current transformer. What is the total burden on the current transformer?

    this question is on the level 3. can someone help with the solution?
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    Quote Originally Posted by Sanjayo View Post
    A watt-hour meter draws 1.5 W and 11.3 VAR from a potential transformer and 1.88 W and 1.8 VARS from a current transformer. What is the total burden on the current transformer?

    this question is on the level 3. can someone help with the solution?
    The total burden would be apparent power on the CT. Real Power^2 + Reactive Power^2 = Apparent Power Squared

    SQRT(1.88^2 + 1.8^2) = 2.603 VA
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