Coils

       About us: “Bistra Todorova 99” LTD has been founded in 1999, main activity manufacturing of transformers. In that time dipl. Eng.

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Elprom Trafo CH manufactures the full range of three-phase oil-immersed distribution transformers with rated power from 25kVA up to 7500kVA. Different series has been developed, depending on no-load losses and load losses, in accordance to the international standard EN 50464-1 : 2007.

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