Problem

10-9. Assume that internal generated voltages of the generators and motors in the per-unit...

10-9. Assume that internal generated voltages of the generators and motors in the per-unit equivalent circuit of the previous problem have the following values:

EA1 = 1.15 ∠22°

EA2 = 1.00∠ − 20°

EA3 = 0.95∠ − 15°

(a) Find the per-unit voltages on each bus in the power system.


(b) Find the actual voltages on each bus in the power system.


(c) Find the current flowing in each transmission line in the power system.


(d) Determine the magnitude and direction of the real and reactive power flowing in each transmission line.


(e) Are any of the components in the power system overloaded?

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Solutions For Problems in Chapter 10