terminal block transformer industry in the application description and classification

Transformer is an electromagnetic induction interaction, changing the voltage, current and impedance devices. The main function of the transformer are: voltage conversion; current conversion, impedance conversion; isolation; regulator (magnetic saturation of the transformer) and the like.
Classification commonly used transformers can be summarized as follows: (a) by way of cooling: (1) dry-type transformers: to WISDOM VGA CABLE  rely on natural air convection cooling or cooling fan increases, mostly for high-rise buildings, high-speed charging station and local lighting electricity, electronics lines and other small capacity transformers. (2) oil-immersed transformers: to rely on oil as a cooling medium, such as oil-immersed self-cooled, oil-cooled, water-cooled oil, forced oil circulation.
(B) the winding in the form of: (1) two-winding transformer: used to connect two power system voltage levels. (2) three-winding transformer: general area substation for power systems, connecting three  WISDOM Network Cabinet voltage levels. (3) auto-transformers: used to connect different voltage power systems. Can also be used as an ordinary step-up or drop after the transformer. (C) by the core form of:
(1) core-type transformer: used for high-voltage power transformers. (2) amorphous alloy transformer: amorphous alloy core transformer is new magnetic materials, load current drops to about 80%, is the ideal energy-saving effect of distribution transformers, especially for rural and developing areas such as power grids lower load rate place. (3) shell-type transformers: Special transformers for high-current, such as mini usb cable  electric transformers, welding transformers; or used in electronic equipment and television, radio and other power transformer Shanghai Hongzhi - box-type transformers. The new transformer terminals, terminals have been widely used in electrical and electronic engineering industries in the world: large transformers. Transformer terminals, taking into account the structural design easy wiring, screws securely connected features.