The V30a CJC™ VACUUM FILTER is designed to remove moisture, oxygen and other gases from fluids. The CJC™ Vacuum Filtration unit is particularly suited for degassing power transformers. The unit provides highly efficient deaeration and drying of oils and furthermore the built in fine filter (3 µm absolute) removes contaminating particles. The V30a, similar to the V30, has been specially designed for long term degassing without maintenance. The control of the system is analogue and therefore virtually fault free.

By lowering the oxygen concentration (down to 200 ppm) and moisture concentration (down to 3 ppm) in the transformer oil the ageing processes (oxidation processes) of the insulation cellulose and oil are slowed considerably thereby extending the life expectancy of the transformer.
The ultimate pressure in the vacuum chamber is 2 mBar (0.5 mBar optional). This pressure is reached when the transformer oil is virtually free of gases and moisture.
85% of all gases in the transformer oil will be removed in one pass. When extremely low gas oxygen concentration has been reached (<500 ppm) the efficiency is 50%.