Electrical Engineering (EE) Exam > Electrical Engineering (EE) Questions > Consider a Δ/Y connected, 20 MVA, 33/11...
Start Learning for Free
Consider a Δ/Y connected, 20 MVA, 33/11 -kV transformer with differential protection applied for the current transformer ratios shown in figure find the minimum relay current setting to allow 125 percent overload
Correct answer is between '1.58,1.64'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Verified Answer
Consider a Δ/Y connected, 20 MVA, 33/11 -kV transformer with dif...
The primary line current is given by
The secondary line current is
The C.T current on the primary side is thus
The C.T current in the secondary side is
Note that we multiply by √3 to obtain the values on the line side of the Δ connected C.T.S. the relay current on Normal load is therefore
The secondary line current is
The C.T current on the primary side is thus
The C.T current in the secondary side is
Note that we multiply by √3 to obtain the values on the line side of the Δ connected C.T.S. the relay current on Normal load is therefore
ir = ip – is = 5.832 – 4.545 = 1.287 A
with 1.25 overload ratio, the relay setting should be
ir = 1.25 × 1.287 = 1.61A
Most Upvoted Answer
Consider a Δ/Y connected, 20 MVA, 33/11 -kV transformer with dif...
The primary line current is given by
The secondary line current is
The C.T current on the primary side is thus
The C.T current in the secondary side is
Note that we multiply by √3 to obtain the values on the line side of the Δ connected C.T.S. the relay current on Normal load is therefore
The secondary line current is
The C.T current on the primary side is thus
The C.T current in the secondary side is
Note that we multiply by √3 to obtain the values on the line side of the Δ connected C.T.S. the relay current on Normal load is therefore
ir = ip – is = 5.832 – 4.545 = 1.287 A
with 1.25 overload ratio, the relay setting should be
ir = 1.25 × 1.287 = 1.61A
Free Test
FREE
| Start Free Test |
Community Answer
Consider a Δ/Y connected, 20 MVA, 33/11 -kV transformer with dif...
The primary line current is given by
The secondary line current is
The C.T current on the primary side is thus
The C.T current in the secondary side is
Note that we multiply by √3 to obtain the values on the line side of the Δ connected C.T.S. the relay current on Normal load is therefore
The secondary line current is
The C.T current on the primary side is thus
The C.T current in the secondary side is
Note that we multiply by √3 to obtain the values on the line side of the Δ connected C.T.S. the relay current on Normal load is therefore
ir = ip – is = 5.832 – 4.545 = 1.287 A
with 1.25 overload ratio, the relay setting should be
ir = 1.25 × 1.287 = 1.61A
Attention Electrical Engineering (EE) Students!
To make sure you are not studying endlessly, EduRev has designed Electrical Engineering (EE) study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in Electrical Engineering (EE).
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Similar Electrical Engineering (EE) Doubts
Top Courses for Electrical Engineering (EE)View all
Consider a Δ/Y connected, 20 MVA, 33/11 -kV transformer with differential protection applied for the current transformer ratios shown in figure find the minimum relay current setting to allow 125 percent overloadCorrect answer is between '1.58,1.64'. Can you explain this answer?
Question Description
Consider a Δ/Y connected, 20 MVA, 33/11 -kV transformer with differential protection applied for the current transformer ratios shown in figure find the minimum relay current setting to allow 125 percent overloadCorrect answer is between '1.58,1.64'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Consider a Δ/Y connected, 20 MVA, 33/11 -kV transformer with differential protection applied for the current transformer ratios shown in figure find the minimum relay current setting to allow 125 percent overloadCorrect answer is between '1.58,1.64'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider a Δ/Y connected, 20 MVA, 33/11 -kV transformer with differential protection applied for the current transformer ratios shown in figure find the minimum relay current setting to allow 125 percent overloadCorrect answer is between '1.58,1.64'. Can you explain this answer?.
Consider a Δ/Y connected, 20 MVA, 33/11 -kV transformer with differential protection applied for the current transformer ratios shown in figure find the minimum relay current setting to allow 125 percent overloadCorrect answer is between '1.58,1.64'. Can you explain this answer? for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about Consider a Δ/Y connected, 20 MVA, 33/11 -kV transformer with differential protection applied for the current transformer ratios shown in figure find the minimum relay current setting to allow 125 percent overloadCorrect answer is between '1.58,1.64'. Can you explain this answer? covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Consider a Δ/Y connected, 20 MVA, 33/11 -kV transformer with differential protection applied for the current transformer ratios shown in figure find the minimum relay current setting to allow 125 percent overloadCorrect answer is between '1.58,1.64'. Can you explain this answer?.
Solutions for Consider a Δ/Y connected, 20 MVA, 33/11 -kV transformer with differential protection applied for the current transformer ratios shown in figure find the minimum relay current setting to allow 125 percent overloadCorrect answer is between '1.58,1.64'. Can you explain this answer? in English & in Hindi are available as part of our courses for Electrical Engineering (EE).
Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
Here you can find the meaning of Consider a Δ/Y connected, 20 MVA, 33/11 -kV transformer with differential protection applied for the current transformer ratios shown in figure find the minimum relay current setting to allow 125 percent overloadCorrect answer is between '1.58,1.64'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
Consider a Δ/Y connected, 20 MVA, 33/11 -kV transformer with differential protection applied for the current transformer ratios shown in figure find the minimum relay current setting to allow 125 percent overloadCorrect answer is between '1.58,1.64'. Can you explain this answer?, a detailed solution for Consider a Δ/Y connected, 20 MVA, 33/11 -kV transformer with differential protection applied for the current transformer ratios shown in figure find the minimum relay current setting to allow 125 percent overloadCorrect answer is between '1.58,1.64'. Can you explain this answer? has been provided alongside types of Consider a Δ/Y connected, 20 MVA, 33/11 -kV transformer with differential protection applied for the current transformer ratios shown in figure find the minimum relay current setting to allow 125 percent overloadCorrect answer is between '1.58,1.64'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice Consider a Δ/Y connected, 20 MVA, 33/11 -kV transformer with differential protection applied for the current transformer ratios shown in figure find the minimum relay current setting to allow 125 percent overloadCorrect answer is between '1.58,1.64'. Can you explain this answer? tests, examples and also practice Electrical Engineering (EE) tests.
|
|
Explore Courses for Electrical Engineering (EE) exam
|
|
Suggested Free Tests
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