Power Transmission and Swing Equation
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Questions and Answers

What is the power-angle equation during the fault?

  • PE = 1.0352 sin(δ)
  • PE = sin(δ) / X
  • PE = sin(δ) / X
  • PE = 0.74 sin(δ) (correct)

    • What is the reactance X between E' and V after the fault is cleared?

  • j0.8 (correct)
  • j0.2
  • j0.5
  • j0.3

    • What is the swing equation in terms of per unit (P.u)?

  • d²δ/dt² = Pm + Pe
  • 2H d²δ/dt² = Pm - Pe (correct)
  • H d²δ/dt² = Pm - Pe
  • d²δ/dt² = Pm - Pe

    • What is the value of Pe in the power-angle equation during the fault?

    <p>0.74 sin(δ)</p> Signup and view all the answers

    What is the value of X in the power-angle equation after the fault is cleared?

    <p>0.8</p> Signup and view all the answers

    What is the power-angle equation after the fault is cleared?

    <p>PE = 1.29 sin(δ)</p> Signup and view all the answers

    What is the relationship between ωs and f in the swing equation?

    <p>ωs = 2πf</p> Signup and view all the answers

    What is the order of the differential equation in the swing equation?

    <p>Second-order nonlinear</p> Signup and view all the answers

    What is the variable δ in the power-angle equation?

    <p>Rotor angle</p> Signup and view all the answers

    What is the significance of the power-angle equation in power system analysis?

    <p>It determines the stability of the system</p> Signup and view all the answers

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