Assignment 1: For the following system and the given parameters, calculate the fault levels a. at 66 kV bus after 66 kV

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Assignment 1 For The Following System And The Given Parameters Calculate The Fault Levels A At 66 Kv Bus After 66 Kv 1 (63.87 KiB) Viewed 38 times

Assignment 1: For the following system and the given parameters, calculate the fault levels a. at 66 kV bus after 66 kV cable, b. at 22 kV intake and, C. at Bus23. Each substation, 2 x 5 MVA, 22/6.6 Load = 6 MVA total area load = 60 MVA 3 × 31.25 MVA. 66/22 KV Intake substation fed by PSL Average circuit loading = 60/6 =10 MVA Average circuit length = 6 km through a 66 KV XLPE cable at a distance of 6 km. The per-unit 35kA impedance is 0.00652+j0.01492 PSL fault level is 35 kA at 66 kV with X/R = 25. 66 kv 66&V 66BVKLPE Cable BY 오오오 21 오온 온 5 3 2 오오 오온 오온 온 6 22kV,500mm?.18 MVA Z=(00795+j0112) $2 per kom 66/22kVtransformer, 3125 MVA.Z=(0.6+j12)% 22/66kV transformer.5MVA, Z=(0.65+j65)% 66/0.4kV transformer, 1MVA, Z=(05+j5% 오온 Bus 23 Bus 24