If moisture enters the transformer oil, the insulation breakdown voltage and inherent resistance value will be reduced, the insulation of the winding will be reduced, thereby shortening the service life of transformer. With PureTech brand Transformer Oil Purifier, the moisture content will be greatly reduced, for double-stage vacuum, the moisture content of transformer oil after purification will be reduced to less than 5 PPM, sometimes lower than 3 PPM; for single-stage vacuum, the moisture content will be reduced to 7 PPM or lower than 5 PPM after oil purification.
Beside the moisture content, the cleanliness and gas content are also important factors that influence the breakdown voltage and dielectric strength of transformer oil. Generally, after purification by PureTech VOP single-stage Vacuum Oil Purifier, the breakdown voltage will be increased to higher than 60KV, while purified by DVOP double-stage Vacuum Oil Purifier, the breakdown voltage will be increased to higher than 75 KV.
You are welcome to contact us for more details and professional recommendations.
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