Star/star transformers work satisfactorily when________________?
Correct answer: B. load is balanced only
- A. load is unbalanced only
- B. load is balanced only
- C. on balanced as well as unbalanced loads
- D. none of the above
Explanation
A star/star transformer is normally suitable for balanced loads, but unbalanced loading and third-harmonic currents can cause neutral displacement and waveform distortion when no delta winding is available. Hence it is generally specified for balanced loads only.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
Practise Electrical Machines
1,061 free Electrical Machines MCQs from Electrical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Electrical Engineering questions like this
Electrical Engineering is on 2 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Electrical Machines questions
Delta/star transformer works satisfactorily when______________?
Silicon steel used in lamination's mainly reduces___________?
Which winding of the transformer has less cross-sectional area?
Which of the following property is not necessarily desirable in the material for transformer core ?
Distribution transformers are generally designed for maximum efficiency around________________?
The value of flux involved m the e.m.f. equation of a transformer is____________?