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Electrical machines miscellaneous

Electrical Machines

  1. Assuming an ideal transformer, the Thevenin’s equivalent voltage and impedance as seen from the terminals x and y for the circuit in figure are

    1. 2 sin(ωt), 4 Ω
    2. 1 sin(ωt), 1 Ω
    3. 1 sin(ωt), 2 Ω
    4. 2 sin(ωt), 0.5 Ω
Correct Option: A

ZXY = Z1
V2
2 = Z1
N2
2 = 1 ×
2
2 = 4 Ω
V2N11

VXY = V1 .
N2
= 2 sin ωt
N1



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