Transformer Oil Gas Analysis with the Agilent TOGA Analyzer with Headspace Sampler
Electrical transformers are used to "transform" voltage from one level to another, usually from a higher voltage to a lower voltage. These transformers use oil as a coolant and insulator. Natural aging and faults due to oxidation, vaporization, oil breakdown, electrolytic action, or insulation decomposition form gases. Since the oil bathes every internal component, dissolved gases in the transformer oil contain a lot of diagnostic information. Because transformers can be expensive to replace, monitoring these gases is critical to indicate when a transformer should be taken out of service before catastrophic failure. The presence of individual gas components and their ratios indicate the possible failure mode. Agilent provides ready to use GC analyzers for transformer oil gas analysis (TOGA) using Headspace Sampler.