Oil Filtration Systems' HVTOPS and DOPS engineered to be effective for use on paraffin-based, naphtha-based, or silicone-based insulating oils
Oil Filtration Systems' two new series of oil purification equipment are engineered to remove impurities from dielectric insulating oils. High Vacuum Transformer Oil Purification Systems (HVTOPS) and Dielectric Oil Purifier Systems (DOPS) are designed to keep oils in transformers or circuit breakers clean and dry. Oil Filtration Systems says that this equipment will improve dielectric strength to meet or exceed 40 Kva per ASTM D877 as well as improve interfacial tension to meet or exceed 40 dynes/cm per ASTM D971.
HVTOPS and DOPS are designed to remove 100% of free water and 99% of dissolved water to achieve an overall moisture content of < 10 ppm. Additionally, the systems are built to remove dissolved air and entrained gases to < 0.25% of overall content, as well as remove all carbon and particulate contamination down to 1-micron and remove acids to achieve .05 mg KOH/gm or lower.
HVTOPS are designed to be single pass systems intended for quick turnarounds. Oil is circulated inside a de-energized transformer or tanker truck to remove water, entrained gases and particulates. Paper windings are dried by pulling a deep vacuum on empty transformers. DOPS are constructed to remove all impurities in multi-pass. Unlike HVTOPS equipment, they do not pull a deep vacuum on empty transformers for dry out. Otherwise, they function the same as HVTOPS.
The two systems are engineered to be effective for use on paraffin-based, naphtha-based, or silicone-based insulating oils, as well as Envirotemp FR3 insulating oil. A variety of sizes are available, from 5GPM (1135 LPH) units to 44 GPM (10,000 LPH) units.