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Given the power system shown below along and its related data: X¹ X² Xº Voltage Rating (pu) (pu) (pu) 20 KV 0.2 0.2 0.05 13.2 KV 0.2 0.2 0.05 0.4 13.2 KV 0.2 0.2 0.05 ΝΑ 20/230 KV 0.1 0.1 0.1 ΝΑ 220/13.2 KV 0.1 0.1 0.1 ΝΑ Item Generator Motor M₁ Motor M₂ Base MVA 300 200 100 350 300 Transformer T₁ Transformer T₂ Line: Xline = 0.43 s/km for 60 km, Xline0= 1.5 m2/km 0136 T DOY Xn (Ω) 0.4 d) Find all phase fault currents phase fault voltages in case of the : i) Three phase balanced fault at bus # 3 ii) Single line to ground fault at bus # 3 Double line to ground fault at bus # 3 111) (M₁) M2) है T₂ a) Draw the one line impedance diagram for the network and indicate all per- unit values using a system base of 300 MVA, 20 KV on the generator side. b) Draw the corresponding equivalent circuit network for the positive sequence, for the negative sequence network and for the zero sequence networks. c) Draw the Thevenin equivalent for each sequence circuit for the case of fault at bus #3

Given the power system shown below along and its related data: X¹ X² Xº Voltage Rating (pu) (pu) (pu) 20 KV 0.2 0.2 0.05 13.2 KV 0.2 0.2 0.05 0.4 13.2 KV 0.2 0.2 0.05 ΝΑ 20/230 KV 0.1 0.1 0.1 ΝΑ 220/13.2 KV 0.1 0.1 0.1 ΝΑ Item Generator Motor M₁ Motor M₂ Base MVA 300 200 100 350 300 Transformer T₁ Transformer T₂ Line: Xline = 0.43 s/km for 60 km, Xline0= 1.5 m2/km 0136 T DOY Xn (Ω) 0.4 d) Find all phase fault currents phase fault voltages in case of the : i) Three phase balanced fault at bus # 3 ii) Single line to ground fault at bus # 3 Double line to ground fault at bus # 3 111) (M₁) M2) है T₂ a) Draw the one line impedance diagram for the network and indicate all per- unit values using a system base of 300 MVA, 20 KV on the generator side. b) Draw the corresponding equivalent circuit network for the positive sequence, for the negative sequence network and for the zero sequence networks. c) Draw the Thevenin equivalent for each sequence circuit for the case of fault at bus #3

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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The course EE466 power system protection Solve this question step by step with clear hand writing
Given the power system shown below along and its related data: X' X² Xº Xn (pu) (pu) (pu) (Ω) 0.2 0.2 0.05 0.4 0.2 0.2 0.05 0.4 0.2 0.2 0.05 ΝΑ 0.1 0.1 ΝΑ 0.1 0.1 ΝΑ Item Generator Motor M₁ Motor M₂ Base MVA 300 200 100 350 300 Transformer T₁ Transformer T2 Line: Xline = 0.43 s/km for 60 km, Xline0 = 1.5 s/km Youn 0136 G T Voltage Rating 20 KV 13.2 KV 13.2 KV 20/230 KV 220/13.2 KV i) ii) iii) 0.1 old 0.1 Single line to ground fault at bus # 3 Double line to ground fault at bus # 3 d) Find all phase fault currents phase fault voltages in case of the : Three phase balanced fault at bus # 3 You T₂ a) Draw the one line impedance diagram for the network and indicate all per- unit values using a system base of 300 MVA, 20 KV on the generator side. b) Draw the corresponding equivalent circuit network for the positive sequence, for the negative sequence network and for the zero sequence networks. (M₁) c) Draw the Thevenin equivalent for each sequence circuit for the case of fault at bus # 3 M2
Transcribed Image Text:Given the power system shown below along and its related data: X' X² Xº Xn (pu) (pu) (pu) (Ω) 0.2 0.2 0.05 0.4 0.2 0.2 0.05 0.4 0.2 0.2 0.05 ΝΑ 0.1 0.1 ΝΑ 0.1 0.1 ΝΑ Item Generator Motor M₁ Motor M₂ Base MVA 300 200 100 350 300 Transformer T₁ Transformer T2 Line: Xline = 0.43 s/km for 60 km, Xline0 = 1.5 s/km Youn 0136 G T Voltage Rating 20 KV 13.2 KV 13.2 KV 20/230 KV 220/13.2 KV i) ii) iii) 0.1 old 0.1 Single line to ground fault at bus # 3 Double line to ground fault at bus # 3 d) Find all phase fault currents phase fault voltages in case of the : Three phase balanced fault at bus # 3 You T₂ a) Draw the one line impedance diagram for the network and indicate all per- unit values using a system base of 300 MVA, 20 KV on the generator side. b) Draw the corresponding equivalent circuit network for the positive sequence, for the negative sequence network and for the zero sequence networks. (M₁) c) Draw the Thevenin equivalent for each sequence circuit for the case of fault at bus # 3 M2
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