The issue: Moisture is Threatening the Transformer

Moisture is one of the primary causes of failures for power transformers and one of the main degradation factors for the insulation paper. It, therefore, increases the risks of operation failures and shortens the life expectancy of the asset.
More than 15 Years of Successful Experience

A TRANSEC unit was installed in November 2017 on 40 MVA General Electric 3-phase transformers in the Dammam region, Saudi Arabia. This 115kV/13.2kV transformer from the 1970s had reached a very high water content in the paper (above 5%) and needed urgent drying. Once installed, the TRANSEC started removing moisture from the oil immediately. It provided a positive effect on the breakdown voltage value. In the second step, water was extracted from the paper as the oil dried out after a few weeks.

They had extracted about 12 litres of water from that transformer within 1 year.