FM TRANSFO also proposes a service of the DBDS and corrosive sulfurs of insulating oils and of the transformers by degassing vacuum dehydration and regeneration with activated earth (or reactivable earth).
REGENERATION aims to renew the physico-chemical qualities of mineral insulating oils and to fully treat the transformer (especially sludge disposal, acidity, pole pieces, …etc).
This core treatment has a positive and significant effect on the useful life of the transformer.
| DESCRIPTION OF THE TEST | METHOD | UNIT | QUALITY OF OIL BEFORE TREATMENT | QUALITY OF OIL AFTER TREATMENT |
|---|---|---|---|---|
| HUMIDITY LEVEL | IEC 733 | ppm | < 100 | < 5 |
| BREACKDOWN VOLTAGE | IEC 156 | KV | < 30 | > 70 |
| ACIDITY | IEC 296 | mg KOH/g | 0,4 | < 0,03 |
| TAN DELTA (90°) | IEC 247 | < 0,01 | < 0,005 | |
| INTERFACIAL TENSION | ASTM/ISO 6295 | Dynes/cm | < 15 | > 35 |
| APPEARANCE OF THE COLOUR | ASTM D1500/ISO 2049 | Visual | Brown / Troubled | Light yellow / Translucent |
| GAS CONTENT | IEC 567 | % v/v | 8 | 0,1 |
| OXIDATION STABILITY | IEC 74 (164h) | mg KOH/g% | Used up | Restaured |
| DBDS (Temperature >60°C) | mg/kg oil | < 200 | < 5 |
FM TRANSFO also proposes a service of the DBDS and corrosive sulfurs of insulating oils and of the transformers by degassing vacuum dehydration and regeneration with activated earth (or reactivable earth).
The expertise of FM TRANSFO in secured development of regeneration by activated earth (and reactivated earth ) allows FM TRANSFO to produce predictive calculations of treatment and to guarantee stable results.