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Figure 2 shows the circuit of a simple power system. The ratings of the generators, transformers and the motors are as shown in the figure. The reactance of lines 1 and 2 are 40 ohms and 50 ohms respectively. Assume that system is unloaded, and the generators are generating their rated voltage. Select the generator G₁ ratings as base values. Choose the fault location in bus 3. And give the bellow answer For a symmetrical three phase fault on the bus 3 1. Calculate the fault current in ampere and fault power in MVA and the fault current contribution from the generator connected to the bus 3.

Figure 2 shows the circuit of a simple power system. The ratings of the generators, transformers and the motors are as shown in the figure. The reactance of lines 1 and 2 are 40 ohms and 50 ohms respectively. Assume that system is unloaded, and the generators are generating their rated voltage. Select the generator G₁ ratings as base values. Choose the fault location in bus 3. And give the bellow answer For a symmetrical three phase fault on the bus 3 1. Calculate the fault current in ampere and fault power in MVA and the fault current contribution from the generator connected to the bus 3.

Introductory Circuit Analysis (13th Edition)
Introductory Circuit Analysis (13th Edition)
13th Edition
ISBN:9780133923605
Author:Robert L. Boylestad
Publisher:Robert L. Boylestad
Chapter1: Introduction
Section: Chapter Questions
Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...
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Figure 2 shows the circuit of a simple power system. The ratings of the generators, transformers and the motors are as shown in the figure. The reactance of lines 1 and 2 are 40 ohms and 50 ohms respectively. Assume that system is unloaded, and the generators are generating their rated voltage. Select the generator G₁ ratings as base values. Choose the fault location in bus 3. And give the bellow answer For a symmetrical three phase fault on the bus 3 1. Calculate the fault current in ampere and fault power in MVA and the fault current contribution from the generator connected to the bus 3.
Figure 2 shows the circuit of a simple power system. The ratings of the generators, transformers and the motors are as shown in the figure. The reactance of lines 1 and 2 are 40 Q and 50 2 respectively. Assume that system is unloaded, and the generators are generating their rated voltage. Select the generator G, ratings as base values. Choose the fault location bus 3 200 MVA 150 MVA 20kV G1 Bus-2 13.8 kV X=17% 200 MVA X = 20% 250 MVA T2 240Y / 20Δ k X =10% Ti m 13.SA/240 Y kV Bus-3 X=11% Bus -1 – j 40 2 Linel 50 2 Line2 50 MVA m T, 120 MVA T3 240 A/11Y kV 240 Y / 18A kV X = 10% X =10% 120 MVA 50 MVA G3 18KV 11 kV M X=19% X= 20% Figure For a symmetrical three phase fault on the bus Calculate the fault current in ampere and fault power in MVA. Calculate the fault current contribution from the generator connected to the bus on which you have selected for fault calculation.
Transcribed Image Text:Figure 2 shows the circuit of a simple power system. The ratings of the generators, transformers and the motors are as shown in the figure. The reactance of lines 1 and 2 are 40 Q and 50 2 respectively. Assume that system is unloaded, and the generators are generating their rated voltage. Select the generator G, ratings as base values. Choose the fault location bus 3 200 MVA 150 MVA 20kV G1 Bus-2 13.8 kV X=17% 200 MVA X = 20% 250 MVA T2 240Y / 20Δ k X =10% Ti m 13.SA/240 Y kV Bus-3 X=11% Bus -1 – j 40 2 Linel 50 2 Line2 50 MVA m T, 120 MVA T3 240 A/11Y kV 240 Y / 18A kV X = 10% X =10% 120 MVA 50 MVA G3 18KV 11 kV M X=19% X= 20% Figure For a symmetrical three phase fault on the bus Calculate the fault current in ampere and fault power in MVA. Calculate the fault current contribution from the generator connected to the bus on which you have selected for fault calculation.
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