Transformer oil pillows create conditions for the thermal expansion and contraction of the compressor oil. There are corrugated, capsule, and diaphragm types.
The role of transformer oil pillows(1) When the oil volume of the transformer changes with the oil temperature, the oil pillow can meet the requirements of oil storage and oil replenishment.
(2) The oil pillow can reduce the contact surface between the transformer and the air, and slow down the deterioration of the oil.
(3) An oil level gauge is installed on the side of the oil pillow to monitor the oil level change.
The role of power transformer oil pillowWhen the volume of transformer oil expands and shrinks with the change of oil temperature, the oil pillow plays the role of oil storage and oil replenishment. Some oil pillows are also equipped with diaphragms or capsules or metal expansion boxes to prevent oil and air from being oxidized and dampened. An oil gauge tube is installed on the oil pillow to observe the change of the oil level. The lower part of the oil pillow is equipped with a mud collector, whose function is to collect the mechanical impurities, oil sludge and moisture deposited in the oil.
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