Calumet has over 25 years of experience producing highly-refined, clean and stable electrical insulating fluids. Developed in-house by Calumet’s R&D group, CALTRAN transformer oils fully meet ASTM D3487 specification for Type 1 and Type 2 mineral insulating oil in electrical apparatus. In addition, CALTRAN offers negative gassing transformer oil in both types. Recently, the CALTRAN brand introduced an uninhibited transformer oil for global markets; designed to fully meet IEC 60296 specification for uninhibited oil.
Calumet provides a superior customer service experience through our market leading manufacturing and distribution network. With our Princeton, LA manufacturing location and dedicated remote transformer oil terminals in Chicago IL, Houston TX, Karns City PA, and Philadelphia PA, Calumet can provide you with uninterrupted product supply and superior service.