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The no-load voltage of the transformer is 440V and It's load current 10A. If the equivalent resistance, Reactance is 0.12Ω and 2.42Ω and is operating at a power factor of 0.8 lag, then the voltage Regulation of transformer is _________%
    Correct answer is between '3.2,4.6'. Can you explain this answer?
    Verified Answer
    The no-load voltage of the transformer is 440V and It's load curre...
    P.F. = Cas-1­ 0.8 = 36.86°
    Full load voltage
    V2 = E2 – I∠-ϕ (R2 + jX2) = 440 – 10∠-36.86 (0.12 + j2.42)
    = 424.93 ∠-2.51° V

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    Most Upvoted Answer
    The no-load voltage of the transformer is 440V and It's load curre...
    To find the equivalent impedance of the transformer, we can use the formula:

    Z = √(Resistance^2 + Reactance^2)

    Given that the equivalent resistance is 0.12, we can substitute this value into the formula:

    Z = √(0.12^2 + 0.12^2)
    = √(0.0144 + 0.0144)
    = √0.0288
    = 0.169

    The equivalent impedance of the transformer is 0.169 ohms.

    Now, we can calculate the load impedance using the formula:

    Impedance = Voltage / Current

    Given that the no-load voltage is 440V and the load current is 10A, we can substitute these values into the formula:

    Impedance = 440V / 10A
    = 44 ohms

    Since the load impedance is equal to the equivalent impedance, we can conclude that the transformer is operating at its maximum efficiency.
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    The no-load voltage of the transformer is 440V and It's load current 10A. If the equivalent resistance, Reactance is 0.12Ω and 2.42Ω and is operating at a power factor of 0.8 lag, then the voltage Regulation of transformer is _________%Correct answer is between '3.2,4.6'. Can you explain this answer?
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    The no-load voltage of the transformer is 440V and It's load current 10A. If the equivalent resistance, Reactance is 0.12Ω and 2.42Ω and is operating at a power factor of 0.8 lag, then the voltage Regulation of transformer is _________%Correct answer is between '3.2,4.6'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about The no-load voltage of the transformer is 440V and It's load current 10A. If the equivalent resistance, Reactance is 0.12Ω and 2.42Ω and is operating at a power factor of 0.8 lag, then the voltage Regulation of transformer is _________%Correct answer is between '3.2,4.6'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The no-load voltage of the transformer is 440V and It's load current 10A. If the equivalent resistance, Reactance is 0.12Ω and 2.42Ω and is operating at a power factor of 0.8 lag, then the voltage Regulation of transformer is _________%Correct answer is between '3.2,4.6'. Can you explain this answer?.
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