In a large power transformer, a “conservator” drum is provided above the completely oil filled transformer tank and connected to it by a short pipe.
The conservator drum is linked to external air through a breather.
What is the purpose of providing the conservator?
A. To store reserve oil to make up oil losses due leakage.
B. To prevent explosion due to rise in Oil pressure inside the tank during a fault.
C. To accommodate change in oil-level during the “load- cycle” of the transformer load.
D. To exert additional pressure by the conservator-oil on the oil inside the main tank to prevent disintegration of oil at high temperature.
Show Answer
Answer: C
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