Transformers - Study Mode
[#1] Iron loss of a transformer can be measured by
Correct Answer
(A) low power factor wattmeter
[#2] Efficiency of a power transformer is of the order of
Correct Answer
(B) 98 per cent
[#3] Which of the following property is not necessarily desirable in the material for transformer core?
Correct Answer
(C) High thermal conductivity
[#4] Which of the following properties is not necessarily desirable for the material for transformer core?
Correct Answer
(C) High thermal conductivity
[#5] Natural air cooling is generally restricted for transformers up to
Correct Answer
(A) 1.5 MVA