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Railways NTPC (Technical Ability) Electrical Measurement and Instrumentation Question Bank Electrical Measurement and Instrumentation

  • question_answer
    In a two wattmeter method of measuring power in a 3-phase system one of the watt meters reads negative implying

    A)  wattmeter connection is faulty

    B)  load is unbalanced

    C)  power flow is in the reverse direction

    D)  power factor is less then 0.5

    Correct Answer: D

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