The function of breather in a transformer is___________?
Correct answer: D. to arrest flow of moisture when outside air enters the 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
Explanation
A transformer breather contains a moisture-absorbing material such as silica gel. It prevents humid outside air from carrying moisture into the transformer conservator and oil when the oil contracts.
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