What are the analysis limits for transformer oil in power transformers?

The analysis limits for transformer oil in power transformers typically include parameters such as moisture content, acidity, dielectric strength, and dissolved gas analysis (DGA). Moisture content should generally be below 20 ppm, acidity should not exceed 0.1 mg KOH/g, and dielectric strength should be above 30 kV for a 2.5 mm gap. Regular monitoring of these analysis limits is crucial for maintaining the operational integrity and reliability of power transformers.