457
21x+452 = 32-84x 21x+84x = 32-452 105x = -420 x = -4
452
19 + 433 = 452
21.5238
resistic earth fault relay install on transformer nutral .
6 + 3 + 21 + 63 + 21 = 114
21
21+21+19+19=80
21+21+17=59
(21-21)+(21-21)+21 = 0+0+21 = 21
55 + 34 + 31 + 27 + 21 + 21 + 20 + 17 + 15 + 15 = 256