... +Ucb =Um = 220 kV, 110 kV, 22 kV Cp in ỏp 220 kV cú Ucb1= 220 kV I cb1 = S cb 3U cb1 = 125 220 = 0,328 kA Cp in ỏp 110 kV cú Ucb2= 110 kV I cb = S cb 3U cb = 125 110 = 0,656 kA Cp in ỏp 22 kV cú Ucb3= ... Hong Tin Thanh- Lp HT2-K4614 Thit k bo v rle cho trm bin ỏp 220 kV Xuõn Mai Hong Tin Thanh- Lp HT2-K4615 Thit k bo v rle cho trm bin ỏp 220 kV Xuõn Mai C23 -7 -1 -76 -75 271 -15 272 -2 -7 TU274 ... DY Phớa 220 kV Ngun cp in cho trm: + ng dõy 271-H ụng vo cỏi C21 ca trm +ng dõy 272-Ho Bỡnh vo cỏi C22 ca trm T cỏi C21,C22-22 0kV qua CL 232-2 cp cho mỏy bin ỏp AT2, cp cho ph ti 11 0kV cỏi C11,C12...