From figure below, if 3 phase bolted fault occurs. Using Zbus method to choose a suitable rating of C.B's. Data are as follows: Gl: 100 MVA, 22 Kv,Xgi" = 0.2 pu G2: 100 MVA, 22 KV, X2"=0.15 pu TR1:...

Extracted text: From figure below, if 3 phase bolted fault occurs. Using Zbus method to choose a suitable rating of C.B's. Data are as follows: Gl: 100 MVA, 22 Kv,Xgi" = 0.2 pu G2: 100 MVA, 22 KV, X2"=0.15 pu TR1: 100 MVA, 22/220 KV, XTr1 =0.1 pu TR2: 100 MVA, 22/220 KV, XTR2 =0.1 pu CB TR1 1 ZTL-J50 ohm TR2 св св G2 3 Zload =(0.2 + j0.1) pu CB