What is the objective of acidity testing of transformer oil in power transformers?

The objective of acidity testing of transformer oil in power transformers is to assess the oil’s degradation and its ability to neutralize acidic byproducts formed during operation. High acidity levels can indicate the presence of corrosive compounds, which may lead to insulation failure and reduced transformer lifespan. Regular acidity testing helps ensure the reliability and efficiency of power transformers by monitoring oil quality and preventing potential operational issues.