The Transformer element of Power System, was fully covered in the course by now, You were asked to start practicing your programming skills to apply the YBus algorithm on the Tool MatLab as a preparation for the Final Project of the course. As an assistant Power System engineer, you are to apply your program on the following sample systems shown in the single line diagram of Fig.1 to compute the YBus. Using a base of 1000 MVA and 500 kV base for the 50 Q lines. The equipment ratings are as follows: Synchronous generator 1: 1300 MVA, 20 kV, Xg=0.2 p.u. Synchronous generator 2: 800 MVA, 18 kV, Xg2-0.1 p.u. Induction motor 3: 500 MVA, 20 kV, Xm;=0.2 p.u. 3 D, A-Y Transformers: 1200 MVA, 450 kV A/20 kV Y, XT1,3,5-0.15 p.u. T, T3,Transformers are wound to follow the American Standard T5, Transformer is a regulating transformer with tap set to provide +5% increase towards the transmission lines. 3 , Y-Y Transformer: 800 MVA, 500 kV Y/18 kV A, X12,4-0.2 p.u. T2, T4, are wound according to Fig 2 Y Y PRE 013380 Y A j 2592 j 50 92 T5 j 2592 TY= 3 Zn Y 3(TH 2