• WHAT DOES IT MEAN OIL DEPOLARIZATION?

By the term DEPOLARIZATION we mean the process of oil regeneration aimed at reducing the soluble and insoluble polar compounds, in order to restore the chemical characteristics of the oil, as acidity, DDFs and color, in accordance to the IEC regulations.

Thanks to this process all the oils previously in compliance with IEC 60296 can be brought back at an optimal level of quality (“like new” conditions).

 

• THE TREATMENT

The non-polar oil is driven through a special kind of treated active clay, the Füller’s earth. The external and internal active polar sites of the clay are able to retain all the substances arising from the degradation of the oil which are responsible for the oxidation state.

The process takes place by percolation at a temperature of 60-80°C and is terminated with dehumidification, filtration and degassing of the oil..

• WARRANTY

At the end of the depolarization process all the chemical, physical and dielectric characteristics of the oil are conforming to IEC 60422.

- Discharge voltage > 60 kV
- Water content (amended at 20 ° C) < 10 mg / kg
- Color ASTM ≤ 2.0 
- DDF at 90 ° C < 0,1 N.N.
- Acidity < 0,05 mg KOH / g oil.