A Y-connected 240V-phase voltage three-phase balanced system supplies a A-connected three phasebalanced load wvith equal impedances Za-Zb-Z- 270 + j75 2, and transmission lines impedanceZ1- 10 Q as shown in Fig. 2.1. Convert the circuit into Y-Y connection and using the Y-Y three-phasesystem, calculate:The total power consumption by the load [W].Vala240 V ~Za ZbNVbIcZclb

Answered: Image /qna-images/answer/a7fad3d2-c9f0-42f0-bda0-075776647681.jpg

Answered: A Y-connected 240V-phase voltage…

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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6. Given the number 0XA0BOCODOE0F0, a. How many bytes for this number b. How many bits for this number c. Store in 8-bit computer with little endian system, and the starting address is 0x123, please show thedata memory map d. Store in 8-bit computer with big endian system, and the starting address is 0x123, please show the data memory map
Figure Q2(b) shows three-phase balanced system in star- delta connection. Given three- phase voltage at the load is Vry = 208V20°V and the load impedance is ZLoad= (9 +j 12) N and then transmission line impedance is ZLine= (1+jl)N. Assumed the system is positive sequence, show all type of current and its value at the load on a phasor diagram. R ZLine ZLoad Zload N y b Zline ZLoad Y B Zuine Figure Q2(b)
Problem 2 A Y-connected balanced three-phase generator with an impedance of 0.4 + j0.3 N per phase is connected to a Y-connected balanced load with an impedance of 24 + j19 N per phase. The line joining the generator and the load has an impedance of 0.6 + j0.7 N per phase. Assuming a positive sequence for the source voltages and that v %3D an 120/30° V, find: (a) the line voltages, (b) the line currents. Answer: (a) 207.85/60° V, 207.85/-60° V, 207.85/-180° V, (b) 3.75/-8.66° A, 3.75/-128.66° A, 3.75/-111.34° A.
Course: Electrical Engineering Subject: Electrical Apparatus Instructions: Write the GIVEN with their respective symbols and units. • Do not skip the SOLUTIONS, do it step-by-step with their respective symbols and units • Round up to 3 three decimal places the FINAL ANSWERS and BOX it. Problem: An abc-phase sequence three-phase balanced wye-connected source supplies power to a balanced delta-connected load. The impedance per phase in the load is 14 + j12 Q. If the source voltage for a phase is Van=120280° Vrms, and the line impedance is zero, find the phase currents in the wye-connected source.
Subject Power System Analysis
A star-connected three-phase balanced power system A transmission line with line impedance Zh It feeds an unbalanced three-phase delta load. Regarding line and load impedances values are given. Zh=2+j, Z1=40+j20, Z2=50-j30 and Z3=25 Accordingly; a)- Calculate IAB and IAC phase currents. b)- Calculate the line currents IAave IBb.
1. A high-voltage generator is connected to a 3-phase wye connected load through a transmission line. Each phase of the line has impedance ZI, and the load is a balanced wye with branch impedance Z. Line to line voltage, |Vab| = 45kV, ZI = (0.5+j3) 2, Z=(4.5+j9) Q. Find the line currents, power consumed by the load and line losses. Draw the phasor diagram. [Ans. Ia= 24-67.38° A, I= 2z172.62° A, Iç = 2452.62° A, Pload = 53.99 MW, %3D %3D Pune 6 MW] A balanced 3-phase a-b-c system with line-to-line voltage Vab = 208/0° V
In Y-Y three-phase system, the following loads are served by a balanced source: Load #1: 20 kVA at PF = 0.8 lagging Load #2: 4 kVA at PF = 0.8 leading Load #3: 10 kVA at PF = 0.75 lagging The load voltage is 208 Vrms at 60 Hz. If the line impedance is negligible, find the power factor at the source.
1
In a balanced three-phase Y-Y system, the source is an abc sequence of voltages and Van = 150 ∠35° V. The line impedance per phase is 0.8 + j2.5 Ω, while the per-phase impedance of the load is 8 + j12 Ω . There is post followeing this question
1.A high-voltage generator is connected to a 3-phase wye connected load through a transmission line. Each phase of the line has impedance Zl, and the load is a balanced wye with branch impedance Z. Line to line voltage, |Vab| = 45kV, Zl = (0.5 + j3) Ω, Z = (4.5 + j9) Ω. Find the line currents, power consumed by the load and line losses. Draw the phasor diagram.
Power systems

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