Q1. A balanced three-phase Y-connected generator with positive sequence has an impedance of0.4 + j1.20/4 and an internal voltage of 240V. The generator feeds a balanced three-phase A-connected load having an impedance of 120.5 + j95.5N/4.The impedance of the line connectingthe generator to the load is 0.6 + j0.80/9.The a-phase internal voltage of the generator isspecified as the reference phasor.a) Construct a single-phase equivalent circuit of the three-phase system.b) Calculate the line currents andc) Calculate the phase voltages at the load terminals.d) Calculate the phase currents of the load.e) Calculate the line voltages at the source terminals.

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Q1. A balanced three-phase Y-connected generator with positive sequence has an impedance of 0.4 + j1.20/0 and an internal voltage of 240V. The generator feeds a balanced three-phase A- connected load having an impedance of 120.5 + j95.5N/4.The impedance of the line connecting the generator to the load is 0.6 + j0.8N/p.The a-phase internal voltage of the generator is specified as the reference phasor. a) Construct a single-phase equivalent circuit of the three-phase system. b) Calculate the line currents and c) Calculate the phase voltages at the load terminals. d) Calculate the phase currents of the load. e) Calculate the line voltages at the source terminals.

Q1. A balanced three-phase Y-connected generator with positive sequence has an impedance of 0.4 + j1.20/0 and an internal voltage of 240V. The generator feeds a balanced three-phase A- connected load having an impedance of 120.5 + j95.5N/4.The impedance of the line connecting the generator to the load is 0.6 + j0.8N/p.The a-phase internal voltage of the generator is specified as the reference phasor. a) Construct a single-phase equivalent circuit of the three-phase system. b) Calculate the line currents and c) Calculate the phase voltages at the load terminals. d) Calculate the phase currents of the load. e) Calculate the line voltages at the source terminals.

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 2.47P: Two three-phase generators supply a three-phase load through separate three-phase lines. The load...

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