Since February 2007 the supervision of transformer oil is recommended within 2 to 6 years. In order to avoid damage or even the risk of shutdown of the operation, the analysis of insulating transformer oil is an important criteria.
As a manufacturer of transformers with decades of experience we know of the importance of care and maintenance of transformers.
For this purpose we take a small amounts of oil and test them against parameters according to DIN EN 60422 in our laboratory with appropriate equipment and test devices.
B. Eng.
Kaj-Erik Johannsen