What tests are performed on transformer oil samples?

Transformer oil samples undergo several critical tests to assess their quality and performance. Key tests include dielectric strength, which measures the oil’s insulating properties; moisture content analysis, to determine water presence; and dissolved gas analysis (DGA), which identifies gases produced by potential faults. Additionally, tests for acidity, flash point, and viscosity are performed to evaluate the oil’s condition and ensure it meets operational standards for effective transformer performance.