Type of transformer?

According to cooling method classification: Dry (self-cooling) transformer, oil-immersed (self-cooling) transformer, fluoride (evaporative cooling) transformer. According to the moisture-proof method classification: open-type transformer, filling type transformer, sealed type transformer. According to iron core or COIL STRUCTURE CLASSIFICATION: Core Transformer (INSERT IRON CORE, C type iron core, ferrite iron core) , Shell type transformer (INSERT IRON CORE, C type iron core, ferrite iron core) , ring type transformer, metal foil transformer. Classified by phase number of power supply: single-phase transformer, three-phase transformer, multi-phase transformer. Classification by purpose: power transformer, voltage regulating transformer, audio transformer, medium frequency transformer, high frequency transformer, pulse transformer. According to cooling method classification: Dry (self-cooling) transformer, oil-immersed (self-cooling) transformer, fluoride (evaporative cooling) transformer. According to the moisture-proof method classification: open-type transformer, filling type transformer, sealed type transformer. According to iron core or COIL STRUCTURE CLASSIFICATION: core transformer (INSERT IRON CORE, C type iron core, ferrite iron core) , Shell type transformer (INSERT IRON CORE, C type iron core, ferrite iron core) , ring type transformer, metal foil transformer. Classified by phase number of power supply: single-phase transformer, three-phase transformer, multi-phase transformer. Classification by purpose: power transformer, voltage regulating transformer, audio transformer, medium frequency transformer, high frequency transformer, pulse transformer.