RRB NTPC/ASM/CA/TA Exam > RRB NTPC/ASM/CA/TA Questions > A star-connected alternator supplies a delta-...
Start Learning for Free
A star-connected alternator supplies a delta-connected load. The impedance of the load branch is (8 + j6) ohm/phase. Determine the power factor.
- a)0.6
- b)0.8
- c)0.57
- d)0.9
Correct answer is option 'B'. Can you explain this answer?
| FREE This question is part of | Download PDF Attempt this Test |
Most Upvoted Answer
A star-connected alternator supplies a delta-connected load. The imped...
Impedance of the load branch
- The impedance of the load branch is given as (8 + j6) ohm/phase.
Power factor
- To determine the power factor, we need to calculate the impedance angle of the load branch.
- The impedance angle can be calculated using the formula: θ = arctan(Imaginary part/Real part).
- In this case, θ = arctan(6/8) ≈ 36.87 degrees.
Power factor formula
- The power factor is given by the cosine of the impedance angle.
- Power factor (PF) = cos(θ) = cos(36.87) ≈ 0.8.
Therefore, the power factor of the delta-connected load supplied by the star-connected alternator is approximately 0.8. So, the correct answer is option 'B'.
- The impedance of the load branch is given as (8 + j6) ohm/phase.
Power factor
- To determine the power factor, we need to calculate the impedance angle of the load branch.
- The impedance angle can be calculated using the formula: θ = arctan(Imaginary part/Real part).
- In this case, θ = arctan(6/8) ≈ 36.87 degrees.
Power factor formula
- The power factor is given by the cosine of the impedance angle.
- Power factor (PF) = cos(θ) = cos(36.87) ≈ 0.8.
Therefore, the power factor of the delta-connected load supplied by the star-connected alternator is approximately 0.8. So, the correct answer is option 'B'.
Free Test
FREE
| Start Free Test |
Community Answer
A star-connected alternator supplies a delta-connected load. The imped...
The overall power factor is defined as the cosine of the angle between the voltage and current. In AC circuits, the power factor is also defined as the ratio of the real power flowing to the load to the apparent power in the circuit. Hence power factor can also be defined as the ratio of watts to volt-amperes.
The load is delta connected having impedance (8 + j6) Ω
Power factor
The load is delta connected having impedance (8 + j6) Ω
Power factor
Attention RRB NTPC/ASM/CA/TA Students!
To make sure you are not studying endlessly, EduRev has designed RRB NTPC/ASM/CA/TA study material, with Structured Courses, Videos, & Test Series. Plus get personalized analysis, doubt solving and improvement plans to achieve a great score in RRB NTPC/ASM/CA/TA.
|
Explore Courses for RRB NTPC/ASM/CA/TA exam
|
|
Similar RRB NTPC/ASM/CA/TA Doubts
Top Courses for RRB NTPC/ASM/CA/TAView all
A star-connected alternator supplies a delta-connected load. The impedance of the load branch is (8 + j6) ohm/phase. Determine the power factor.a)0.6b)0.8c)0.57d)0.9Correct answer is option 'B'. Can you explain this answer?
Question Description
A star-connected alternator supplies a delta-connected load. The impedance of the load branch is (8 + j6) ohm/phase. Determine the power factor.a)0.6b)0.8c)0.57d)0.9Correct answer is option 'B'. Can you explain this answer? for RRB NTPC/ASM/CA/TA 2024 is part of RRB NTPC/ASM/CA/TA preparation. The Question and answers have been prepared according to the RRB NTPC/ASM/CA/TA exam syllabus. Information about A star-connected alternator supplies a delta-connected load. The impedance of the load branch is (8 + j6) ohm/phase. Determine the power factor.a)0.6b)0.8c)0.57d)0.9Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for RRB NTPC/ASM/CA/TA 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A star-connected alternator supplies a delta-connected load. The impedance of the load branch is (8 + j6) ohm/phase. Determine the power factor.a)0.6b)0.8c)0.57d)0.9Correct answer is option 'B'. Can you explain this answer?.
A star-connected alternator supplies a delta-connected load. The impedance of the load branch is (8 + j6) ohm/phase. Determine the power factor.a)0.6b)0.8c)0.57d)0.9Correct answer is option 'B'. Can you explain this answer? for RRB NTPC/ASM/CA/TA 2024 is part of RRB NTPC/ASM/CA/TA preparation. The Question and answers have been prepared according to the RRB NTPC/ASM/CA/TA exam syllabus. Information about A star-connected alternator supplies a delta-connected load. The impedance of the load branch is (8 + j6) ohm/phase. Determine the power factor.a)0.6b)0.8c)0.57d)0.9Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for RRB NTPC/ASM/CA/TA 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A star-connected alternator supplies a delta-connected load. The impedance of the load branch is (8 + j6) ohm/phase. Determine the power factor.a)0.6b)0.8c)0.57d)0.9Correct answer is option 'B'. Can you explain this answer?.
Solutions for A star-connected alternator supplies a delta-connected load. The impedance of the load branch is (8 + j6) ohm/phase. Determine the power factor.a)0.6b)0.8c)0.57d)0.9Correct answer is option 'B'. Can you explain this answer? in English & in Hindi are available as part of our courses for RRB NTPC/ASM/CA/TA.
Download more important topics, notes, lectures and mock test series for RRB NTPC/ASM/CA/TA Exam by signing up for free.
Here you can find the meaning of A star-connected alternator supplies a delta-connected load. The impedance of the load branch is (8 + j6) ohm/phase. Determine the power factor.a)0.6b)0.8c)0.57d)0.9Correct answer is option 'B'. Can you explain this answer? defined & explained in the simplest way possible. Besides giving the explanation of
A star-connected alternator supplies a delta-connected load. The impedance of the load branch is (8 + j6) ohm/phase. Determine the power factor.a)0.6b)0.8c)0.57d)0.9Correct answer is option 'B'. Can you explain this answer?, a detailed solution for A star-connected alternator supplies a delta-connected load. The impedance of the load branch is (8 + j6) ohm/phase. Determine the power factor.a)0.6b)0.8c)0.57d)0.9Correct answer is option 'B'. Can you explain this answer? has been provided alongside types of A star-connected alternator supplies a delta-connected load. The impedance of the load branch is (8 + j6) ohm/phase. Determine the power factor.a)0.6b)0.8c)0.57d)0.9Correct answer is option 'B'. Can you explain this answer? theory, EduRev gives you an
ample number of questions to practice A star-connected alternator supplies a delta-connected load. The impedance of the load branch is (8 + j6) ohm/phase. Determine the power factor.a)0.6b)0.8c)0.57d)0.9Correct answer is option 'B'. Can you explain this answer? tests, examples and also practice RRB NTPC/ASM/CA/TA tests.
|
|
Explore Courses for RRB NTPC/ASM/CA/TA 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