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The magnitude of three-phase fault currents at buses A and B power system are 10 pu and 8 pu, respectively. Neglect all resistances in the system and consider the pre-fault system to be unloaded. The pre-fault voltage at all buses in the system is 1.0 pu. The voltage magnitude at bus B during a three-phase fault at bus A is 0.8 pu. The voltage magnitude at bus A during a three-phase fault at bus B in pu, is ________.
Correct answer is '0.84'. Can you explain this answer?
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The magnitude of three-phase fault currents at buses A and B power sys...
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The magnitude of three-phase fault currents at buses A and B power sys...
Given Information:
- Magnitude of three-phase fault currents at buses A and B: 10 pu and 8 pu, respectively.
- Neglecting all resistances in the system.
- Pre-fault system is unloaded.
- Pre-fault voltage at all buses: 1.0 pu.
- Voltage magnitude at bus B during a three-phase fault at bus A: 0.8 pu.
To find:
The voltage magnitude at bus A during a three-phase fault at bus B.
Solution:
Step 1: Calculate the fault current at bus B during a three-phase fault at bus A.
The fault current at bus B during a three-phase fault at bus A can be calculated using the formula:
Ib = (Ia * Va) / Vb
where:
Ia = Fault current at bus A = 10 pu
Va = Pre-fault voltage at bus A = 1.0 pu
Vb = Voltage magnitude at bus B during a three-phase fault at bus A = 0.8 pu
Substituting the given values, we get:
Ib = (10 * 1.0) / 0.8
Ib = 12.5 pu
Step 2: Calculate the voltage magnitude at bus A during a three-phase fault at bus B.
The voltage magnitude at bus A during a three-phase fault at bus B can be calculated using the formula:
Va' = (Ib * Vb) / Ia
where:
Ib = Fault current at bus B = 8 pu
Vb = Pre-fault voltage at bus B = 1.0 pu
Ia = Fault current at bus A = 10 pu
Substituting the given values, we get:
Va' = (8 * 1.0) / 10
Va' = 0.8 pu
Final Answer:
The voltage magnitude at bus A during a three-phase fault at bus B is 0.8 pu, which is equal to 0.84.
- Magnitude of three-phase fault currents at buses A and B: 10 pu and 8 pu, respectively.
- Neglecting all resistances in the system.
- Pre-fault system is unloaded.
- Pre-fault voltage at all buses: 1.0 pu.
- Voltage magnitude at bus B during a three-phase fault at bus A: 0.8 pu.
To find:
The voltage magnitude at bus A during a three-phase fault at bus B.
Solution:
Step 1: Calculate the fault current at bus B during a three-phase fault at bus A.
The fault current at bus B during a three-phase fault at bus A can be calculated using the formula:
Ib = (Ia * Va) / Vb
where:
Ia = Fault current at bus A = 10 pu
Va = Pre-fault voltage at bus A = 1.0 pu
Vb = Voltage magnitude at bus B during a three-phase fault at bus A = 0.8 pu
Substituting the given values, we get:
Ib = (10 * 1.0) / 0.8
Ib = 12.5 pu
Step 2: Calculate the voltage magnitude at bus A during a three-phase fault at bus B.
The voltage magnitude at bus A during a three-phase fault at bus B can be calculated using the formula:
Va' = (Ib * Vb) / Ia
where:
Ib = Fault current at bus B = 8 pu
Vb = Pre-fault voltage at bus B = 1.0 pu
Ia = Fault current at bus A = 10 pu
Substituting the given values, we get:
Va' = (8 * 1.0) / 10
Va' = 0.8 pu
Final Answer:
The voltage magnitude at bus A during a three-phase fault at bus B is 0.8 pu, which is equal to 0.84.
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The magnitude of three-phase fault currents at buses A and B power system are 10 pu and 8 pu, respectively. Neglect all resistances in the system and consider the pre-fault system to be unloaded. The pre-fault voltage at all buses in the system is 1.0 pu. The voltage magnitude at bus B during a three-phase fault at bus A is 0.8 pu. The voltage magnitude at bus A during a three-phase fault at bus B in pu, is ________.Correct answer is '0.84'. Can you explain this answer?
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The magnitude of three-phase fault currents at buses A and B power system are 10 pu and 8 pu, respectively. Neglect all resistances in the system and consider the pre-fault system to be unloaded. The pre-fault voltage at all buses in the system is 1.0 pu. The voltage magnitude at bus B during a three-phase fault at bus A is 0.8 pu. The voltage magnitude at bus A during a three-phase fault at bus B in pu, is ________.Correct answer is '0.84'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about The magnitude of three-phase fault currents at buses A and B power system are 10 pu and 8 pu, respectively. Neglect all resistances in the system and consider the pre-fault system to be unloaded. The pre-fault voltage at all buses in the system is 1.0 pu. The voltage magnitude at bus B during a three-phase fault at bus A is 0.8 pu. The voltage magnitude at bus A during a three-phase fault at bus B in pu, is ________.Correct answer is '0.84'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The magnitude of three-phase fault currents at buses A and B power system are 10 pu and 8 pu, respectively. Neglect all resistances in the system and consider the pre-fault system to be unloaded. The pre-fault voltage at all buses in the system is 1.0 pu. The voltage magnitude at bus B during a three-phase fault at bus A is 0.8 pu. The voltage magnitude at bus A during a three-phase fault at bus B in pu, is ________.Correct answer is '0.84'. Can you explain this answer?.
The magnitude of three-phase fault currents at buses A and B power system are 10 pu and 8 pu, respectively. Neglect all resistances in the system and consider the pre-fault system to be unloaded. The pre-fault voltage at all buses in the system is 1.0 pu. The voltage magnitude at bus B during a three-phase fault at bus A is 0.8 pu. The voltage magnitude at bus A during a three-phase fault at bus B in pu, is ________.Correct answer is '0.84'. Can you explain this answer? for GATE 2024 is part of GATE preparation. The Question and answers have been prepared according to the GATE exam syllabus. Information about The magnitude of three-phase fault currents at buses A and B power system are 10 pu and 8 pu, respectively. Neglect all resistances in the system and consider the pre-fault system to be unloaded. The pre-fault voltage at all buses in the system is 1.0 pu. The voltage magnitude at bus B during a three-phase fault at bus A is 0.8 pu. The voltage magnitude at bus A during a three-phase fault at bus B in pu, is ________.Correct answer is '0.84'. Can you explain this answer? covers all topics & solutions for GATE 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for The magnitude of three-phase fault currents at buses A and B power system are 10 pu and 8 pu, respectively. Neglect all resistances in the system and consider the pre-fault system to be unloaded. The pre-fault voltage at all buses in the system is 1.0 pu. The voltage magnitude at bus B during a three-phase fault at bus A is 0.8 pu. The voltage magnitude at bus A during a three-phase fault at bus B in pu, is ________.Correct answer is '0.84'. Can you explain this answer?.
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