About company Products Quality Technology Press center Documents Order Contacts Conventional designation of transformers homeDocumentation Conventional designation of transformers 1 group (transformer type) BUT autotransformer B / m transformer 2 group (number of phases) ABOUT single phase transformer T three-phase transformer Group 3 (cooling system) M cooling system with natural circulation of oil type ONAN D cooling system with natural oil circulation and forced air circulation type ONAF DC cooling system with forced oil circulation and forced air circulation, type OFAF C cooling system with forced oil circulation and forced water circulation type OFWF H directional oil circulation cooling system 4 group (number of windings) T three-winding B / m double-winding Group 5 (regulation system) H load voltage regulation B / m voltage switching without excitation 6 group (type features) B power transformer for drilling AT horizontal transformer D lightning protection transformer D transformer for powering electric dehydrators F t transformer protected Z protected transformer (with nitrogen protection) TO transformer with cable glands L cast resin transformer M metallurgical transformer H non-combustible dielectric transformer (midsection, silicone, etc.) P mobile transformer for railways P furnace transformer P converter transformer WITH transformer for auxiliary needs of generating stations WITH dry transformer Have dry transformer F forced cooling transformer Sh mine transformer E transformer for power supply of the electric drive Projects Conventional designation of transformers Information disclosure We help ensure Russia's energy security, strengthen the region's economy, and develop high-tech technologies. Contact Information The address: Togliatti, st. Industrialnaya, 1 Reference: +7 (8482) 75-99-09 Fax: +7 (8482) 75-99-11 Email: tt@transformator.com.ru Social networks twitter livejournal facebook Key partners LLC "Togliatti Transformer" 2016 tt@transformator.com.ru Press center Products