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Unit 4 |
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N. Cotter |
PRACTICE EXAM |
1. (30 points)
a. Calculate the value of rms current, Irms, flowing through zL.
b. Calculate the complex power, S, for zL. Include appropriate units.
2. (30 points)
Balanced three-phase, positive-sequence system
IaA = 15 ∠ 0°A Zg = (0.2 + j0.2)Ω
VaA = 22.5 ∠ 53.13°V ZD = (30 + j24)Ω
a. Draw a single-phase equivalent circuit.
b. Calculate IAB.
3. (40 points)
a. Write a numerical time-domain expression for the current i(t).
b. Calculate V1.