A single line to ground fault (on phase a) occurs on the bus 1 of the...

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A single line to ground fault (on phase a) occurs on the bus 1 of the syst shown. i) A double line fault (on phases a and b) occurs on the bus 1 of the system shown. ii) Find: (a) Current in the fault. (23 М) (b) Voltages of buses after fault. Use Zpus method. T1 1 2 T2 Line M G Rating X1 X2 Хо Machine 10% 10% 5% 5% G 1200KVA,600 V 10% 10% 5% 5% M 1200KVA,600 V 20% 20% 20% Line 5% 5% TI 1200KVA,600/3300V 5% 1200KVA,600/3300V 5% 5% 5% T2 A single line to ground fault (on phase a) occurs on the bus 1 of the syst shown. i) A double line fault (on phases a and b) occurs on the bus 1 of the system shown. ii) Find: (a) Current in the fault. (23 М) (b) Voltages of buses after fault. Use Zpus method. T1 1 2 T2 Line M G Rating X1 X2 Хо Machine 10% 10% 5% 5% G 1200KVA,600 V 10% 10% 5% 5% M 1200KVA,600 V 20% 20% 20% Line 5% 5% TI 1200KVA,600/3300V 5% 1200KVA,600/3300V 5% 5% 5% T2

Answer rating: 100% (QA)

Draw the per unit positive sequence network 008 pu 2 01S pu O 008 pu 02 pu 02 pu Calculate the Bus a... View the full answer