engineering recuitment BEL Probationary Engineers Mock Test 2025 Electrical Machines Transformer Cooling of Transformer
The purpose of oil in high rating transformer is for
a. lubrication of core.
b. insulation.
c. cooling of transformer.
d. providing fuel for operation.
Which of the above statements is/are correct?1
Only a and b
2
Only b, c and d
3
Only b
4
Only b and c