Transformers are too expensive to replace regularly and must be properly maintained to maximize the life of a transformer.
Monitoring the physical and chemical properties of transformer oil and the presence of certain dissolved gases can signal if there is a problem with the oil or the potential life of a transformer.
Perform & monitor these 3 tests on-site routinely to improve the life of a transformer.
Karl Fischer Moisture : moisture content can reduce the insulating properties of transformer oil which may result in dielectric breakdown.
Dissolved Gas : concentrations and relative ratios of these gases can be used to diagnose certain operational problems with the transformer.
Dielectric test : the breakdown voltage test is used to evaluate the degree of impurity in insulating liquids due to foreign particles and water.
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