Terminals 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 rely on natural air convection cooling or increase the cooling fan , used for high-rise buildings , high-speed toll station electricity and local lighting , electronic circuits 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 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 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 , you can quickly and easily installed on 2X10mm rail . Terminal products designed to meet IEC60947-7-1 and other international standards.