... 12, 52 61 Tie switches to be closed - 70 , 71 , 72 , 73 69, 70 , 71 , 72 , 73 72 , 73 71 , 72 , 73 71 , 72 , 73 Power loss (kW) 586.83 246.33 270 .81 302. 37 248.40 290.98 Minimum voltage (p.u.) 0.914 ... 0.14 47 55 55 56 0.2813 0.1433 56 56 57 1.5900 0.53 37 57 57 58 0 .78 37 0.2630 58 58 59 0.3042 0.1006 59 59 60 0.3861 0.1 172 60 60 61 0.5 075 0.2585 61 61 62 0.0 974 0.0496 62 62 63 0.1450 0. 073 8 ... Energy Technology and Management 74 Substation 73 70 3669123456 7 8910111213141516 17 181920212223242526 27 2829303132333446 47 48495253545556 57 58596061626364505168 67 3536 37 3839404142434445Sectionalizing...