Find the Following compure until A decimalA) IN Unbala nced conditiuns without Faulrs:•) Load Line current Ia, Ib, Ic•) Load Line voltages Vab, Voc, Vca:) Load power profilePr, Qr, St, pfr DIagram.FauLtちphase3phaseLoadSource2 LineValues :sourceLine Imped an ces:Ean: 120 L0 V:) ZLinea: 1 j2n• Ebn: 150L-143.1' V:) 2 Line b: 1-j24• E cn: 90L 90'V Carounded neutral)) 2Line C: 0+j2.2361 A• zan: 2bn: zen =: 0141.5ALoad Impedances:) 2ab: 40+j30 4:) znc: 40-j 302• Zca: 501 j0A

Under unbalanced condition without fault, we have to find a) load line currents b) load line voltage…

Answered: A) IN Unbala nced conditiuns without…

A) IN Unbala nced conditiuns without Faulrs- •) Load Line current Ia, Ib , Ic •) Load Line voltages Vab, Voc, Vca :) Load power profile Pr, Qr, St, pfr

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

Chapter6: Power Flows

Section: Chapter Questions

Problem 6.61P

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Concept explainers

Power Measurement

According to Blondel's theorem, the total power is measured with one less number of wattmeters than the number of wires present in the system. So, a single-phase and two-wire system will require one wattmeter and a single-phase and the three-wire system will require two wattmeters, and a three-phase and the three-wire system will also require two wattmeters and a three-phase and the four-wire system will require three wattmeter devices. The wattmeter is a device that measures power using one voltage and one current input as shown in the above figure. Multiple current or voltage input pair cables are used by many power analyzers and digital storage oscilloscopes (DSOs) for measuring watts, in effect within a single instrument acting as multiple wattmeters. It is possible to measure three-phase and four-wire power with one correctly specified power analyzer.

Question

Transcribed Image Text:Find the Following compure until A decimal A) IN Unbala nced conditiuns without Faulrs: •) Load Line current Ia, Ib, Ic •) Load Line voltages Vab, Voc, Vca :) Load power profile Pr, Qr, St, pfr

DIagram.
FauLt
ち
phase
3phase
Load
Source
2 Line
Values :
source
Line Imped an ces:
Ean: 120 L0 V
:) ZLinea
: 1 j2n
• Ebn: 150L-143.1' V
:) 2 Line b: 1-j24
• E cn: 90L 90'V Carounded neutral)
) 2Line C: 0+j2.2361 A
• zan: 2bn: zen =
: 0141.5A
Load Impedances:
) 2ab: 40+j30 4
:) znc: 40-j 302
• Zca: 501 j0A

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