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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. [Wrong Answer] |
B. | To prevent explosion due to rise in Oil pressure inside the tank during a fault. [Wrong Answer] |
C. | To accommodate change in oil-level during the "load - cycle" of the transformer load. [Correct Answer] |
D. | To exert additional pressure by the conservator-oil on the oil inside the main tank to prevent disintegration of oil at high temperature. [Wrong Answer] |