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The insulating fluid in a power transformer performs two major functions:
- Serves as electrical insulation to withstand the high voltages inside the transformer
- Acts as a heat transfer medium to carry out heat generated within the transformer windings
Transformer oil analysis is a cost-effective electrical preventive maintenance tool. DYMAX and transformer manufacturers recommend an annual dielectric fluid testing routine. Fluid testing provides reference points that can show a historical trend in the dielectric fluid condition. Quantitative analysis of impurities in the fluid can indicate the priority of taking preventive maintenance action.
As a transformer ages, gases and contaminants can dissolve in its fluid and lead to transformer failure. Sampling and analysis of the oil form the cornerstone of transformer preventive maintenance.
Don't ignore fluid testing until a failure occurs, contact us.
Related Transformer Service Links:
• Oil processing
• Transformer assembly
• Energized oil processing
• Load tap changer (LTC) repairs
• Transformer testing
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