Transformers with a capacity of up to __________ have a cooling radiator system with natural cooling?
Correct answer: D. 10 MVA
- A. 2 MVA
- B. 5 MVA
- C. 7.5 MVA
- D. 10 MVA
Explanation
Natural cooling with radiator systems is commonly used for transformers up to about 10 MVA; larger units generally require forced oil or air circulation. The 10 MVA limit is the standard design reference used here.
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
The heat dissipating capability of transformers of ratings higher than 30 kVA in increased by providing which of the following ?
The forced oil and air circulation method is usual one for transformers of capacities____________?
Disc windings are primarily used in_____________-?
Which of the following is the basic consideration in the design of insulation ?
A current density of __________ is ilsed for large power transformers with forced circulation of oil or with water cooling coils?
For 275 kV transformers, using cold rolled grain oriented steel, which of the following values of flux density may be used?