1. Draw the per unit impedance circuit of the following circuit. Use 50 MVA and the transformer voltage ratios as the bases. The 10 for ( mathrm{G} 1 ) reactance means ( 0.10 mathrm{pu} ) at its own base (25 MVA). The reactance of the other equipment can also be expressed similarly. (Ans: ( X_{ mathrm{G} 1}=0.2 mathrm{pu} ; mat solutionspile.com

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1. Draw the per unit impedance circuit of the following circuit. Use 50 MVA and the transformer voltage ratios as the bases. The \

10

for \\( \\mathrm{G} 1 \\) reactance means \\( 0.10 \\mathrm{pu} \\) at its own base (25 MVA). The reactance of the other equipment can also be expressed similarly. (Ans: \\( X_{\\mathrm{G} 1}=0.2 \\mathrm{pu} ; \\mathrm{X}_{\\mathrm{T} 1}=0.15 \\mathrm{pu} ; \\mathrm{Z}_{\\mathrm{linv}}=0.0207+\\mathrm{j} 0.2066 \\mathrm{pu} ; \\mathrm{X}_{\\mathrm{T} 2}=0.125 \\mathrm{pu} ; \\mathrm{X}_{\\mathrm{G} 2}=0.25 \\) \\( \\mathrm{pu} ; \\mathrm{X}_{\\mathrm{T3}}=0.083 \\mathrm{pu} ; \\mathrm{Z}_{\\text {load }}=2 \\) L \\( \\left.23.78^{0} \\mathrm{pu}\\right) \\)

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