Transformer Oil Sampling & Analysis

The analysis and diagnosis of mineral oil and other fluids such as natural esters, is internationally recognised as a low cost and valuable non-invasive aid in determining the condition of electrical equipment.

Utilising our experienced field teams, WILSON TRANSFORMER COMPANY can provide a comprehensive sampling and diagnostic service for all fluid filled equipment, including transformers, on-load tap changers, circuit breakers and equipment that uses SF6 gas.

It is critical that samples are taken by skilled technicians and are free from contamination to ensure that the integrity of the sample is not compromised. As such, all fluid samples are taken with a glass syringe for moisture and DGA (in accordance with IEC 60567) and a one litre bottle for other tests.  SF6 samples are taken using a purposed built evacuated stainless steel container.

The samples are then sent to TJ|H2b Analytical Services, a NATA certified laboratory, for comprehensive analysis and diagnosis.

TJ|H2b have pioneered specialised proprietary condition-based diagnostics that have been proven in hundreds of thousands of tests worldwide, saving customers millions of dollars in increased reliability of supply, lower maintenance costs and prevention of catastrophic failures.

Wilson Transformer's technicians also specialise in taking paper and pressboard samples from accessible locations within transformers to test the strength and, hence, remaining life of the cellulose insulating systems and then undertaking the re-papering of locations from which the samples have been taken.


  • Oil and SF6 gas Sampling
    • ​P: +61 3 8768 6800
    • E: Email
  • Oil and SF6 gas Testing