Transformer oil release valve

The transformer oil release valve (also known as the oil expansion valve or oil-gas valve) is an important component of a transformer. Its primary function is to regulate the pressure changes inside the transformer's oil tank, ensuring the transformer operates normally during its service life. The key functions include:

1. Regulating oil expansion: When the transformer is in operation, the oil inside expands as the temperature rises. The oil release valve automatically releases excess oil or allows air from outside the oil tank to enter, maintaining pressure balance inside the transformer.

2. Preventing tank rupture: By regulating the internal pressure, the valve helps prevent the oil tank from bursting due to excessive expansion, ensuring the safety of the transformer.

3. Air exchange function: The valve allows limited exchange of air between the interior of the oil tank and the outside environment. This prevents moisture from the air from entering the oil tank while minimizing oil oxidation, thus extending the transformer's lifespan.

4. Maintaining oil quality: By preventing excessive pressure inside the tank and reducing the risk of oil leakage or air contamination, the oil release valve helps maintain the oil's stability, ensuring effective cooling and insulation for the transformer.

5. Adapting to external temperature changes: Temperature fluctuations in the external environment can cause the oil inside the transformer to expand or contract. The oil release valve adjusts accordingly to these changes, ensuring stable operation.

In summary, the oil release valve plays a crucial role in maintaining pressure balance, ensuring safe and stable operation of the transformer, and extending the equipment's service life.