Transformer, main, sort, gener
Release time：2021-03-27 09:29:58 Popularity： Source：未知
The common transformer can be classified as follows: 1, according to phase number: 1) single-phase transformer: for single-phase load and three-phase transformer group. 2) three-phase transformer: used for raising and lowering voltage of three-phase system. 2, according to Cooling: 1) dry-type Transformer: Relying on Air convection for natural cooling or increase fan cooling, mostly used in high-rise buildings, high-speed toll stations and local lighting, electronic circuits and other small-capacity transformer. 2) OIL-IMMERSED TRANSFORMER: Depending on oil as cooling medium, such as oil-immersed self-cooling, oil-immersed air-cooling, oil-immersed water-cooling, forced oil circulation, etc. . 3, by use: 1) power transformer: for the transmission and distribution system of the rise and fall voltage. Instrument transformers: such as voltage transformers, current transformers, used for measuring instruments and relay protection devices. 3) test transformer: Can Produce High Voltage, high voltage test on electrical equipment. 4) special transformer: such as electric furnace transformer, rectifier transformer, adjustment transformer, capacitor transformer, phase shift transformer, etc. . 4, according to the winding form: 1) double winding transformer: used to connect the power system in the two voltage levels. 2) three-winding transformer: generally used in power system regional substation, connecting three voltage levels. 3) autotransformer: a power system used to connect different voltages. It can also be used as common step-up or step-down transformer. 5, according to the core form: 1) core type transformer: for high-voltage power transformer. 2) Amorphous Metal Transformer: the Amorphous Alloy iron core transformer is a new type of magnetic conducting material. The no load current decreases by about 80% . It is an ideal distribution transformer for energy saving, especially suitable for low load rate areas such as rural power grids and developing areas. 3) shell-type transformers: special transformers for high current applications, such as furnace transformers, welding transformers, or power transformers for electronic equipment, televisions, radios, etc.
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