Please help with this balanced three-phase circuit problem. 1. A balanced three phase 60HZ abc system feeds two A-connected loads in parallel. Load #1draws 40KVA at a lagging power factor of 0.8, while load #2 absorbs 24kW at a laggingpower factor of 0.9. The line to line voltage at the loads, between phase A and B, isV.= 440Z30°V rms. Find:АВa. The total complex power drawn by the loads.b. The phase current IAB1 for load #1.c. The power factor of the combined loads.d. The line current on phase A of the transmission line.e. A bank ofY-connected capacitors is added to the system. Determine:i. The reactive power the capacitors need to generate to change the overallpower factor to 0.92 lagging.ii. The value of each capacitorf. The line current on phase A of the transmission line after the capacitors are addedto the system. Compare the amplitude of this new current to the amplitude of thecurrent before the capacitors were added

Given data is -In 3-phase line to line abc system feeds two∆ connected loads in parallel.so for…

1. A balanced three phase 60HZ abc system feeds two A-connected loads in parallel. Load #1 draws 40KVA at a lagging power factor of 0.8, while load #2 absorbs 24kW at a lagging power factor of 0.9. The line to line voltage at the loads, between phase A and B, is = 440Z30°V rms. Find: V. AB a. The total complex power drawn by the loads. b. The phase current IaB1 for load #1. c. The power factor of the combined loads.

1. A balanced three phase 60HZ abc system feeds two A-connected loads in parallel. Load #1 draws 40KVA at a lagging power factor of 0.8, while load #2 absorbs 24kW at a lagging power factor of 0.9. The line to line voltage at the loads, between phase A and B, is = 440Z30°V rms. Find: V. AB a. The total complex power drawn by the loads. b. The phase current IaB1 for load #1. c. The power factor of the combined loads.

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 2.23MCQ: In a balanced system, the phasor sum of the line-to-line voltages and the phasor sum of the...

See similar textbooks

Similar questions

In a balanced system, the phasor sum of the line-to-line voltages and the phasor sum of the line-to-neutral voltages are always equal to zero. (a) False (b) True
The one-line diagram of a three-phase power system is shown in the above figure. The line impedances are in per- unit on a 100-MVA base, and the line admittances are neglected. Use Gauss-Seidel method in Matlab to analyze the system the tolerance of error is 10-3. Then anwser the questions as follows. V, = 1.05200 0.01+ j0.025 300 + j200 MVA 0.015 + j0.035 150 MW 200 +j150 MVA 0.01+ j0.03 |V = 1.03 The admittance matrix (Y_bus)? 0.02 + jo.04 0.0125 + jo.03 2.
A balanced Y-connected generator with terminal voltage Vbc 5 200/08 volts is connected to a balanced-D load whose impedance is 10/408 ohms per phase. The line impedance between the source and load is 0.5/808 ohm for each phase. The generator neutral is grounded through an impedance of j5 ohms. The generator sequence impedances are given by Zg0 5 j7, Zg1 5 j15, and Zg2 5 j10 ohms. Draw the sequence networks for this system and determine the sequence components of the line currents.
AC Power and Power Factor 1. Two loads are connected in parallel across a 13,200-volt line. Load A draws 200kW at 0.6 p.f. (lagging), load B takes 200kVA at 0.8 p.f. (lagging). Find the reactive, apparent and true power and the line current.
The one-line diagram of a three-phase power system is shown in the above figure. The line impedances are in per- unit on a 100-MVA base, and the line admittances are neglected. ' qu V = 1.05200 0.01+ j0.025 300 + j200 MVA 3 0.015 + j0.035 150 MW 200 + j150 MVA 0.01 + j0.03 |V = 1.03 The admittance matrix (Y_bus)? The bus power in per-unit?
The one-line diagram of a three-phase power system is shown in the above figure. The line impedances are in per- unit on a 100-MVA base, and the line admittances are neglected. ' V, = 1.05200 0.01 + jo.025 300 +j200 MVA 3 0.015+j0.035 150 MW 200 +j150 MVA 4 0.01 + j0.03 |V2 = 1.03 The admittance matrix (Y_bus)? 0.02 + jo.04 0.0125 + jo.03
Two delta connected loads are connected in parallel and powered by a balanced Y-connectedsource. The smaller of two loads draws 10 kVA at a lagging power factor of 0.75 and the largerdraws 25 kVA at a leading power factor of 0.8. The line voltage is 400 V. Calculate a) The powerfactor at which the source is operating. b) The total power drawn by the two loads. c) The phasecurrent of each load.
Two balanced loads are connected to the a 240kVrms60Hz line as shown in the figure below. Load 1 draws30kW at a power factor of 0.6 lagging and load 2 draws 45 kVAR at power factor of 0.8 lagging. The real power, reactive power, and magnitude of the line current absorbed by the combined load is close to kW, kVAR, and A. Two balanced loads are connected to the a 240kVrms 60Hz line as shown in the figure below. Load 1 draws 30kW at a power factor of 0.6 lagging kW. and load 2 draws 45KVAR at power factor of 0.8 lagging. The real power absorbed by the combined load is close to Balanced load 1 Balanced load 2
Draw a 3-phase wye-connected generator with transmission lines connected to a 3-phase delta-connected load. Assume the lines connecting them have an inductance of j5 per phase. The generated voltages are 120 Vrms with phase 'a' having a phase angle of 0°. The loads are 10 Ohm resistors per phase. When drawing, make sure to label all 3 phases with voltage phasors, line inductances, and load resistances.
Circuit theory. Y-connected balanced three-phase generator with an impedance of Zs =0.4+j0.3 ohm per phase is connected to a Y-connected balanced load with an impedance of ZL=14+j31 ohm per phase. The line joining the generator and the load has an impedance of Zl=0.6+j0.7 ohm per phase. Assuming a positive sequence for the source voltages and that amplitude of |Van|=188 and its phase angle 30 degree Find: (a) amplitude of the line voltage Vbc, (b) amplitude of the line current Ic, (c) the complex power at the balanced three-phase load. a. (a) Vb=325.63 V, (b) Ic=5.32 A, (c) S = 84006.67 + j 989.44 VA b. (a) Vb=265.87 V, (b) Ic=3.07 A, (c) S = 14001.11 + j 285.63 VA c. (a) Vb=325.63 V, (b) Ic=5.32 A, (c) S = 9508.07 + j 21053.59 VA d. (a) Vb=265.87 V, (b) Ic=5.32 A, (c) S = 3565.53 + j 7895.10 VA e. (a) Vb=325.63 V, (b) Ic=7.98 A, (c) S = 42003.33 + j 742.08 VA f. (a) Vb=325.63 V, (b) Ic=6.38 A, (c) S = 4754.04 + j 10526.80 VA g. (a) Vb=325.63 V, (b) Ic=5.32…
Two single-phase loads are connected in parallel, where load 1 is 4.7 kVA at 0.87 lagging power factor, and load 2 is5.2 kWat0.79lagging power factor. The load combination is connected to a voltage source of220VAC,50 Hz. a) Find the total complex power
4) Two three-phase generators supply a three-phase load through separate three-phase lines. The load absorbs ... KW at 0.8 power factor lagging. The line impedance is (1.4 +j1.6) ohm per phase between generator G1 and the load, and (0.8+j1) ohm per phase between generator G2 and the load. If generator G1 supplies... kW at 0.8 power factor lagging, with a terminal voltage of 460 V line-to-line; Determine: (a) the voltage at the load terminals, (b) the voltage at the terminals of generator G2, and (c) the real and reactive power supplied by generator G2. Assume balanced operation. (Please determine the power values within the specified limits: Load active power: 32-40 kW, G1 active power: 15- 22 kW. By considering the power values you determined yourself, solve the question.)