Transformer oil is mineral insulating oil derived from crude petroleum. It is a Mixture of various hydrocarbons. It consist partly aliphatic compounds with the general formula C H2(12 and C H2. It is important to check the condition of oil periodically to ensure safety of transformers. The following tests are used to access the condition of a transformer!
- Dielectric Strength
- Water Content
- Neutralization Value
- Interfacial Tension
- Dielectric Dissipation Factor
- Test for Corrosive Sulphur in Oil
- Test for Oxidation Stability
- Specific Resistance (Resistivity)
- Flash Point
- Pour Point
- Viscosity
- Sludge Test
- Dissolved Gas Analysis (DGA)
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