L2 TCA Course – e-lesson #5 – Dissolved Gas Analysis and Oil Quality

This lesson is part of the L2 TCA course and focuses on the importance of dissolved gas analysis and oil quality for transformer health. The presenter, Jon Giesecke, emphasizes the differences between level one and level two transformer condition assessments, highlighting the additional technologies used in the more comprehensive level two approach. Giesecke stresses the critical role of proper oil sampling techniques to avoid contamination and ensure accurate analysis. The session covers the key dissolved gases, their generation, and the impact of factors like galvanized fittings on hydrogen evolution. Discussions also include the use of furanic compounds to assess paper condition and the diagnostics for load tap changers. Throughout the lesson, Giesecke aims to educate attendees on the essential aspects of transformer oil quality and dissolved gas analysis.