What is the density of transformer oil at different temperatures?

The density of transformer oil varies with temperature, typically ranging from 0.85 to 0.95 g/cm�. At higher temperatures, the density of transformer oil decreases due to thermal expansion. For example, at 20�C, the density is approximately 0.88 g/cm�, while at 40�C, it may drop to around 0.86 g/cm�. Accurate density measurements are crucial for assessing the performance and safety of power transformers.