A balanced A-connected load has an impedance of 60 + j45 /6. The load is fed through a line having an impedance of 0.8 + j0.6 0/6. The phase voltage at the terminals of the load is 480 V. The phase se- quence is positive. Use V a) Calculate the three phase currents of the load. AB as the reference. b) Calculate the three line currents. c) Calculate the three line voltages at the sending end of the line.
A balanced A-connected load has an impedance of 60 + j45 /6. The load is fed through a line having an impedance of 0.8 + j0.6 0/6. The phase voltage at the terminals of the load is 480 V. The phase se- quence is positive. Use V a) Calculate the three phase currents of the load. AB as the reference. b) Calculate the three line currents. c) Calculate the three line voltages at the sending end of the line.
Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter2: Fundamentals
Section: Chapter Questions
Problem 2.23P: A single-phase source has a terminal voltage V=1200volts and a currentI=1530, which leaves the...
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Step 1:Convert balanced delta connected load in star connection
Taking source as star connection to simplify calculation. so, we have to convert balanced delta connected load into star connection.
To convert balanced delta connected load into star connection divide the delta connected load impedance by 3.
and as we know in star connection:
Vph=VL / and Iph=IL
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