Every year between 1000 and 2000 MV/LV Transformers with Mineral Oil enter the public distribution network;
Natural Ester of Vegetable origin for Transformers appeared in the market as an alternative to the insulating oil of Mineral origin normally used, presenting as potential features:
- Characteristics equivalent or superior to those of the Oil of Mineral origin.
- Biodegradability characteristics – lower environmental impact.
- Much higher flash point.
Its environmental impact and better performance in fire behaviour made E-REDES go ahead with a study on these Natural Esters and proceed to real environment tests by installing several MV/LV transformers with this technology.
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