The system is used for treatment of electric insulating oils (viscosity is not to exceed 70cSt) by means of adsorbent (zeolite, silica gel, activate alumina etc.) in order to eliminate mechanical impurities, soluble and free water, to decrease acidity of oils. The adsorbent agent is restored subsequently directly in the system. The system is applied while installation, repair and operation of oil-filled high-voltage equipment.

Operational conditions

- ambient temperature from +10°C to +35°C
- atmospheric pressure from 84 to 106.7 kPa
- height above sea level up to 2000m
- fire and explosion proof room


Design and process description

The system consists of two autonomous blocks:
heating & filtration block and adsorbent cartridge block interconnecting with flexible hoses.
The heating & filtration block consists of oil heater, pump unit, cartridge pre-filter, cartridge fine filter, control cabinet and pipelines.

The cartridge filter is composed of cylindrical vessel wherein filter element is located with a set of magnets. Cleaning of magnets occurs on changing filter element (cartridge). Pre-filter’s filtration fineness is 40 μm, fine filter’s filtration fineness is 5 μm