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TRANSFORMER OIL TESTING IN VADODARA

Laboratory Testing of Transformer Oil

The testing of transformer oil is required on a regular basis. It is quite a common practice in the industries.

Let us know some basics, read below, “What is Transformer Oil?”

A kind of oil that has properties such as

  • high insulation
  • being stable at high temperatures
  • Dielectric strength
  • Water content
  • Viscosity
  • Interfacial tension

Let us know some of the applications/uses of transformer oil?

Let us know some of the applications/uses of transformer oil?

  • In oil-filled transformers
  • High voltage capacitors
  • Fluorescent lamp ballasts
  • High voltage switches
  • Circuit breakers

The two main kinds of transformer oil are :

  • Mineral oil (naphthenic)
  • Silicone
  • Bio-based

RLA & condition assessment process is a three stage approach and explained here below with the example of Power Transformer:

Transformer oil has to be checked regularly in order to make sure its working quality, and whether it meets the standard or not. Various methods conduct testing. The criteria are established by the ASTM ( American Society for Testing and Materials). Now, what factors do we check while testing transformer oils in a laboratory?
  • The standard specification for mineral insulating oil.
  • Acid number
  • Liquid power factor
  • Interfacial tension
  • Specific resistance
  • Corrosive sulfur
  • Visual examination

  • To determine the required electrical properties
  • To maintain its cleanliness
  • To know if any filtration is needed
  • Reduces oil costs
  • Controls repetitive failures

    • Appearance
    • Breakdown Voltage
    • Water Content
    • Neutralization Value
    • Sediment and Sludge
    • Dielectric Dissipation
    • Factor & Resistivity
    • Interfacial Tension
    • Flash Point
    • Pour Point
    • Density
    • Viscosity
    • Partical Count
    • Furan Content
    • Degree of Polymerization
    • Dissolved Gas Analysis

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