(a) Figure Q6(A) shows two generators, Gi and G2 feeding power to a 132 kV system....
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(a) Figure Q6(A) shows two generators, Gi and G2 feeding power to a 132 kV system. Each line, namely Line 1 and Line 2 has reactance of 0.2 2/km/phase and is 200 km long. The per unit value of reactance for every component is based on a common 100 MVA and 11kV at Gl. Determine the following when a balanced fault occurs at point F: (i) Fault current (in Ampere) and MVA fault level at point F. (7 marks) (ii) Current from Gl and G2 in Ampere due to this fault (6 marks) Bus I Bus 2 Line I G G2 F 50 MVA II kV Xc2= 0.08 p.u. 100 MVA 100 MVA Line 2 50 MVA II kV XGI - 0.15 p.u. XT -0.10 p.u. 11/132 kV 132/11 kV X-0.10 p.u. (a) Figure Q6(A) shows two generators, Gi and G2 feeding power to a 132 kV system. Each line, namely Line 1 and Line 2 has reactance of 0.2 2/km/phase and is 200 km long. The per unit value of reactance for every component is based on a common 100 MVA and 11kV at Gl. Determine the following when a balanced fault occurs at point F: (i) Fault current (in Ampere) and MVA fault level at point F. (7 marks) (ii) Current from Gl and G2 in Ampere due to this fault (6 marks) Bus I Bus 2 Line I G G2 F 50 MVA II kV Xc2= 0.08 p.u. 100 MVA 100 MVA Line 2 50 MVA II kV XGI - 0.15 p.u. XT -0.10 p.u. 11/132 kV 132/11 kV X-0.10 p.u.
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University Physics with Modern Physics
ISBN: 978-0321501219
12th Edition
Authors: Hugh D. Young, Roger A. Freedman, Lewis Ford
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