For which of the following ratings of the transformer differential protection is recommended ?
Correct answer: B. equal to and above 5 MVA
- A. above 30 kVA.
- B. equal to and above 5 MVA
- C. equal to and above 25 MVA
- D. none of the above
Explanation
Transformer differential protection is normally applied to larger transformers because its cost and complexity are justified at higher ratings, commonly around 5 MVA and above. Thus the threshold given in option b is the standard textbook choice.
Last updated
Practise Power Systems
334 free Power Systems MCQs from Electrical Engineering, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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.
Related questions
Advantages of HVDC transmission over AC system is / are____________?
Which of the following relays is used on long transmission lines?
The steel used in steel cored conductors is usually__________?
Which of the following distribution systems is more reliable?
Which of the following characteristics should the line supports for transmission lines possess?