What diagnostic tests are performed on transformer oil?

Diagnostic tests performed on transformer oil include Dissolved Gas Analysis (DGA) to detect gases produced by insulation breakdown, moisture content measurement to assess insulation integrity, and dielectric strength testing to evaluate the oil’s insulating properties. Additionally, Furan Analysis is conducted to assess paper insulation condition, while acidity and particle count tests help determine oil degradation and contamination levels. These tests are crucial for ensuring the reliability and longevity of power transformers.