Problem : The system with one incoming lines is given in Figure 1: 100 MVA 100 MVA 20 KV 20 KW / 132 KV 1 40 MVA 2 132 K

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Problem The System With One Incoming Lines Is Given In Figure 1 100 Mva 100 Mva 20 Kv 20 Kw 132 Kv 1 40 Mva 2 132 K 1 (37.15 KiB) Viewed 57 times

Problem : The system with one incoming lines is given in Figure 1: 100 MVA 100 MVA 20 KV 20 KW / 132 KV 1 40 MVA 2 132 KV 11 KV 3 11 KV 10 1195 159 por ---Load P = 30 MW Cosphi =0.8 Lag 120A LOO Generator G: 100MVA,20 KV.X=10% Transformer T1: 100 MVA,20/132 KV X=11% Transmission Line 10 + 1250 Transformer T2:40 MVA, 132/11 KV X=6% Load 11 KV.P = 30 MW, Cose=0.8 Lagging • Relays 1,3,5 directional overcurrent Protection • t, and ty times delay 1,2,3,4,5,6 circuits breakers CTR 1 and CTR 3 = 500/5=100 All relays are SPCJ 4029 Coordination time (At= 300 ms) Ks=150% . Answer the questions 1) Find the per-unit impedance diagram of the network 2) Calculate the three-phase fault at primary relay location 3 (bus bar 2). 3) Find TAP and TDS of relays 1 and 3.