Capacitive voltage transformers; Current transformers; Dry-type transformers; Electric current transformers; Electric devices for use in the protection of transformers; Electric mains transformers; Electric power supplies being transformers for marine use; Electric transformers; Electrical power packs comprising transformers and rectifiers; Electrical reducing transformers; Electrical transformers; Electrical transformers for use with lighting; Electricity transformers; Electronic transformers; Encased air-cooled transformers; Flyback transformers; Frequency transformers; High voltage transformers; Impedance transformers; Power packs (transformers); Power supply apparatus (transformers); Power supply devices (transformers); Power supply units comprising transformers; Power units (transformers); Regulating transformers; Sliding contacts for variable transformers; Step-up transformers; Tap changers for electric transformers; Transformers (electricity); Transformers being electromagnetic devices for industrial applications; Transformers being electromagnetic devices for military applications; Transformers operating as rectifiers; Voltage transformers