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[Solved] Consider the balanced three-phase circuit is given below. The voltage values indicated are rms values.

Question 1: (30pts.) Consider the balanced three-phase circuit is given below. The voltage values indicated are rms values. Assume that the line to line voltage at the source are given by V = 420230 Volt(rms). (a) Calculate 11 (b) Calculate the line-to-line voltage of the load V. (c) Calculate the total complex power of the three-phase load. A LA 122 2. В V 022 Source Line 2ine=1+j1 Load 22=15+j15 Question 2: (20pts.) A 270-V rms 80-Hz supply serves a load that is 12 kW. 17 kVAR (capacitive), and 25 kVAR (inductive). Find: (a) the apparent power (b) the current drawn from the supply (c) the kVAR rating and capacitance required to improve the power factor to 0.96 lagging (d) the current drawn from the supply under the new power-factor conditions Question 3: (25pts.) The Bode plot of the magnitude of a transfer function |H(w) is shown below. (a) Find and give the functional form of H(w). (b) Construct the Bode plot of the phase ZH(w) of the transfer function. Ha 60 dB 40 dB 40 dB/decade 20 dB/decade E 20 dB 1 10 40 100 1000 axrad/s) Question 4: (25 pts.) Consider the ideal transformer circuit shown below. The turn ratio of the two transformers are given on the figure. (a) Find the output voltage of the first transformer V (b) Find the output voltage of the second transformer V. 10 Ω 1:2 2012 V. -j20 Ω 100/220° 2:1 Volt + 1.25 2 well V. j1.252

European University of Lefke
Department of Electric and Electronic Engineering
GROPEAN
Q1
Q2
Q3
04
Total
Circuit Theory II
EE

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Answer to Consider the balanced three-phase circuit is given below. The voltage values indicated are rms values. Assume that the line to line voltage….

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