Question

The changes in volume of transformer cooling oil due to variation of atmospeheric temperature during day and night is taken care of by which part of transformer?

Answer 1

Answer:

When transformer is loaded and when ambient temperature rises, the volume of oil inside transformer increases as oil expands. ... Explanation: For the transformers n higher kVA ratings can be used with this cooling method.

Answer 2

The changes in the volume of transformer cooling oil due to variation in atmospheric temperature during day and night, are taken care of by the conservator of the transformer.

• A conservator is a tank fixed on top of a transformer.
• It is cylindrical in shape and is connected to the main tank via short pipes
• It is partially filled with transformer oil.
• When the transformer is working, oil in the transformer undergoes expansion and contraction.
• As the load of the transformer increases, there is a rise in the oil temperature resulting in an increase in oil pressure.
• This oil flows into the conservator tank and there it expands and occupies the space in the tank.
• This prevents the transformer from bursting due to increased pressure.
• Similarly, as the load decreases, the oil in the conservator tank shrinks.
• Conservator tank thus handles the expansion and shrinking of transformer oil and prevents major accidents.