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Figure 3.32 shows the one-line diagram of a three-phase power system. By selecting a common base of 100 MVA and 22 kV on the generator side, draw an impedance dia- gram showing all impedances including the load impedance in per-unit. The data are given as follows: 3.23 G: 90 MVA 22 kV x = 0.18 per unit T1: 50 MVA 22/220 kV x = 0.10 per unit T2: 40 MVA 220/11 kV x = 0.06 per unit Т3: 40 MVA 22/110 kV x = 0.064 per unit T4: 40 MVA 110/11 kV X = 0.08 per unit M: 66.5 MVA 10.45 kV x = 0.185 per unit Lines 1 and 2 have series reactances of 48.4 and 65.43 N, respectively. At bus 4, the three-phase load absorbs 57 MVA at 10.45 kV and 0.6 power factor lagging. FIGURE 3.32 T, 1 2 4 Line 1 Problem 3.23 220 kV M 6 Line 2 Load 110 kV

Figure 3.32 shows the one-line diagram of a three-phase power system. By selecting a common base of 100 MVA and 22 kV on the generator side, draw an impedance dia- gram showing all impedances including the load impedance in per-unit. The data are given as follows: 3.23 G: 90 MVA 22 kV x = 0.18 per unit T1: 50 MVA 22/220 kV x = 0.10 per unit T2: 40 MVA 220/11 kV x = 0.06 per unit Т3: 40 MVA 22/110 kV x = 0.064 per unit T4: 40 MVA 110/11 kV X = 0.08 per unit M: 66.5 MVA 10.45 kV x = 0.185 per unit Lines 1 and 2 have series reactances of 48.4 and 65.43 N, respectively. At bus 4, the three-phase load absorbs 57 MVA at 10.45 kV and 0.6 power factor lagging. FIGURE 3.32 T, 1 2 4 Line 1 Problem 3.23 220 kV M 6 Line 2 Load 110 kV

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

Book Name: Power System Analysis and Design,. Fifth Edition. J. Duncan Glover, Mulukutla S. Sarma, and Thomas J

Page: 147

problem no: 3.23

Figure 3.32 shows the one-line diagram of a three-phase power system. By selecting a common base of 100 MVA and 22 kV on the generator side, draw an impedance dia- gram showing all impedances including the load impedance in per-unit. The data are given as follows: 3.23 G: 90 MVA 22 kV x = 0.18 per unit T1: 50 MVA 22/220 kV x = 0.10 per unit T2: 40 MVA 220/11 kV X = 0.06 per unit Т3: 40 MVА 22/110 kV x = 0.064 per unit T4: 40 MVA 110/11 kV x = 0.08 per unit M: 66.5 MVA 10.45 kV x = 0.185 per unit Lines 1 and 2 have series reactances of 48.4 and 65.43 N, respectively. At bus 4, the three-phase load absorbs 57 MVA at 10.45 kV and 0.6 power factor lagging. FIGURE 3.32 T2 3 4 Line 1 Problem 3.23 220 kV M T3 Ta 6 Line 2 Load 110 kV
Transcribed Image Text:Figure 3.32 shows the one-line diagram of a three-phase power system. By selecting a common base of 100 MVA and 22 kV on the generator side, draw an impedance dia- gram showing all impedances including the load impedance in per-unit. The data are given as follows: 3.23 G: 90 MVA 22 kV x = 0.18 per unit T1: 50 MVA 22/220 kV x = 0.10 per unit T2: 40 MVA 220/11 kV X = 0.06 per unit Т3: 40 MVА 22/110 kV x = 0.064 per unit T4: 40 MVA 110/11 kV x = 0.08 per unit M: 66.5 MVA 10.45 kV x = 0.185 per unit Lines 1 and 2 have series reactances of 48.4 and 65.43 N, respectively. At bus 4, the three-phase load absorbs 57 MVA at 10.45 kV and 0.6 power factor lagging. FIGURE 3.32 T2 3 4 Line 1 Problem 3.23 220 kV M T3 Ta 6 Line 2 Load 110 kV
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