GATE Exam > GATE Questions > The magnitude of three-phase fault currents a...
Start Learning for Free
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?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
The magnitude of three-phase fault currents at buses A and B power sys...
Most Upvoted Answer
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.
|
Explore Courses for GATE exam
|
|
Similar GATE Doubts
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?
Question Description
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?.
Solutions 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? in English & in Hindi are available as part of our courses for GATE.
Download more important topics, notes, lectures and mock test series for GATE Exam by signing up for free.
Here you can find the meaning of 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? defined & explained in the simplest way possible. Besides giving the explanation of
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?, a detailed solution 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? has been provided alongside types of 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? theory, EduRev gives you an
ample number of questions to practice 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? tests, examples and also practice GATE tests.
|
|
Explore Courses for GATE exam
|
|
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
|
© EduRev
|
Education Revolution
|
Follow Us
|
Signup to see your scores
go up within 7 days!
Access 1000+ FREE Docs, Videos and Tests
Takes less than 10 seconds to signup