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7. Draw a per unit reactance diagram for the three-phase system shown in Fig. 8.14. Choose 20 MVA and 66 kV as base values. 10 MVA

7. Draw a per unit reactance diagram for the three-phase system shown in Fig. 8.14. Choose 20 MVA and 66 kV as base values. 10 MVA

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
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7. Draw a per unit reactance diagram for the three-phase system shown in Fig. 8.14. Choose 20 MVA and 66 kV as base values. 10 MVA G2 11 kVo o 10 % Line 10 MVA G3) 11 kV 10 % j 60 N 20 MVA 11 kV 15 % 30 MVA 11/66 kV 15 % 30 MVA 66/11 kV 15 % T3 3E To load 38 omon 2.5 MVA 11/6.6 kV 8 % AVMR AVM S AVM Fig. 8.14. 8. The one-line diagram for a two-generator system is shown in Fig. 8.15. Redraw the diagram to show all values in per unit on a 7000 kVA base. ol las 1 MVA 11 kV z=j 0.1 pu T2 Line G3 z (10 +j 20) 2 0.5 MVA 11 kV z=j 0.15 pu 2 MVA 11/33 kV z=j 0.15 pu 3 MVA 33/11 kV z=j 0.15 pu 2 MVA 11 kV z=0.05 pu Flg. 8.15.
Transcribed Image Text:7. Draw a per unit reactance diagram for the three-phase system shown in Fig. 8.14. Choose 20 MVA and 66 kV as base values. 10 MVA G2 11 kVo o 10 % Line 10 MVA G3) 11 kV 10 % j 60 N 20 MVA 11 kV 15 % 30 MVA 11/66 kV 15 % 30 MVA 66/11 kV 15 % T3 3E To load 38 omon 2.5 MVA 11/6.6 kV 8 % AVMR AVM S AVM Fig. 8.14. 8. The one-line diagram for a two-generator system is shown in Fig. 8.15. Redraw the diagram to show all values in per unit on a 7000 kVA base. ol las 1 MVA 11 kV z=j 0.1 pu T2 Line G3 z (10 +j 20) 2 0.5 MVA 11 kV z=j 0.15 pu 2 MVA 11/33 kV z=j 0.15 pu 3 MVA 33/11 kV z=j 0.15 pu 2 MVA 11 kV z=0.05 pu Flg. 8.15.
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