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A 3-phase abc-sequenced balanced system has an rms line voltage of Vab= 400/0°. The load is A-connected and has an impedance (per phase) of ZA = 20+j15. The line impedance is negligible: Zline 0. Determine the line currents, Ia, Ib, Ie, and the complex power, Stot, to the load. Suggestion: Find the phase currents, Lab, Ibe, Ica, first.

A 3-phase abc-sequenced balanced system has an rms line voltage of Vab= 400/0°. The load is A-connected and has an impedance (per phase) of ZA = 20+j15. The line impedance is negligible: Zline 0. Determine the line currents, Ia, Ib, Ie, and the complex power, Stot, to the load. Suggestion: Find the phase currents, Lab, Ibe, Ica, first.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
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SORRY, for number 4 i got Stot = 9.8 kw + 7.39kvar

Problem 3 A 3-phase abc-sequenced balanced system has an rms line voltage of Vab 40020°. The load is A-connected and has an impedance (per phase) of ZA = 20+j15. The line impedance is negligible: Zline 0. Determine the line currents, Ia, Ib, Ie, and the complex power, Stot, to the load. Suggestion: Find the phase currents, Lab, Ibe, Ica, first.
Transcribed Image Text:Problem 3 A 3-phase abc-sequenced balanced system has an rms line voltage of Vab 40020°. The load is A-connected and has an impedance (per phase) of ZA = 20+j15. The line impedance is negligible: Zline 0. Determine the line currents, Ia, Ib, Ie, and the complex power, Stot, to the load. Suggestion: Find the phase currents, Lab, Ibe, Ica, first.
3) load 4) IAB= Source Vab= 400 Loo I Z VAB ZA I c = Problem 3 A 3-phase abc-sequenced balanced system has an rms line voltage of Vab 400/0°. The load is A-connected and has an impedance (per phase) of ZÄ 20+j15. The line impedance is negligible: Ziine ≈ 0. Determine the line currents, Ia, Ib, Ic, and the complex power, Stot, to the load. Suggestion: Find the phase currents, Iab, Ibc, Ica, first. 4 Vab= 3-pnase = с vab = 20+ √15 ZA 400 Lo > Vab IG= IAB √3 L-30° Z line = Problem 4 = 14.57 Armsh - 66.87 I ¦ Tt = 19.57 Arms L -186.87 19.57 Arms L-306.87 с -> 282.8200 25 L 36.87 = 282.8200 Whole A Zo B = 20+ j15 25 L 36.870 B ~ 11.31 Arms Віс V₁ = √3 Vp L-36.87 11.3 Arms L -156.87 IBC ICA ~ 11.3 Arms L-276.87 15 2 line ~ 0, Voltage at Source fot = to L+30° = 3 voltage V²₁, rms at load 3 (282.8) ² گاز - ۱۰ - 7.712 W +5 5.8 KVAR
Transcribed Image Text:3) load 4) IAB= Source Vab= 400 Loo I Z VAB ZA I c = Problem 3 A 3-phase abc-sequenced balanced system has an rms line voltage of Vab 400/0°. The load is A-connected and has an impedance (per phase) of ZÄ 20+j15. The line impedance is negligible: Ziine ≈ 0. Determine the line currents, Ia, Ib, Ic, and the complex power, Stot, to the load. Suggestion: Find the phase currents, Iab, Ibc, Ica, first. 4 Vab= 3-pnase = с vab = 20+ √15 ZA 400 Lo > Vab IG= IAB √3 L-30° Z line = Problem 4 = 14.57 Armsh - 66.87 I ¦ Tt = 19.57 Arms L -186.87 19.57 Arms L-306.87 с -> 282.8200 25 L 36.87 = 282.8200 Whole A Zo B = 20+ j15 25 L 36.870 B ~ 11.31 Arms Віс V₁ = √3 Vp L-36.87 11.3 Arms L -156.87 IBC ICA ~ 11.3 Arms L-276.87 15 2 line ~ 0, Voltage at Source fot = to L+30° = 3 voltage V²₁, rms at load 3 (282.8) ² گاز - ۱۰ - 7.712 W +5 5.8 KVAR
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