What is the function of breather in a transformer?
A
To provide oxygen inside the tank
B
To cool the coils during reduced load
C
To cool the transformer oil
D
To arrest flow of moisture when outside air enters the transformer
Correct Answer: To arrest flow of moisture when outside air enters the transformer
Most of the power generation stations use silica gel breathers fitted to conservator of oil filled transformers. The most used purpose of these silica gel breathers is to arrest the moisture when the outside air is sucked in by the transformer during the breathing process.