3. A three-phase system is operating with two loads. The line voltage at the terminals of the load is 480V. Load 1 is Y-connected with impedance magnitude of 9 and an angle of 36.87, load 2 is delta-connected with impedance magnitude of 5 and angle of -30. It is connected through a line with impedance 0.09 + j0.16 ohms a. Find the voltage drop across the transmission lines b. Find the real and reactive power supplied to the two loads. c. Solve the overall complex power supplied by the source and compute the overall p.f. d. If two wattmeters are connected at the terminals of the load, compute the reading (assuming a common connection at a).

Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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3. A three-phase system is operating with two loads. The line voltage at the terminals
of the load is 480V. Load 1 is Y-connected with impedance magnitude of 9 and an
angle of 36.87, load 2 is delta-connected with impedance magnitude of 5 and angle
of -30. It is connected through a line with impedance 0.09 + j0.16 ohms
a. Find the voltage drop across the transmission lines
b. Find the real and reactive power supplied to the two loads.
c. Solve the overall complex power supplied by the source and compute the
overall p.f.
d. If two wattmeters are connected at the terminals of the load, compute the
reading (assuming a common connection at a).
Transcribed Image Text:3. A three-phase system is operating with two loads. The line voltage at the terminals of the load is 480V. Load 1 is Y-connected with impedance magnitude of 9 and an angle of 36.87, load 2 is delta-connected with impedance magnitude of 5 and angle of -30. It is connected through a line with impedance 0.09 + j0.16 ohms a. Find the voltage drop across the transmission lines b. Find the real and reactive power supplied to the two loads. c. Solve the overall complex power supplied by the source and compute the overall p.f. d. If two wattmeters are connected at the terminals of the load, compute the reading (assuming a common connection at a).
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