How is the transformer sorted?
4, according to the winding form points:
1) Double winding transformer: Used to connect two voltage levels in the power system.
2) Three-winding transformer: generally used in power system area substation, connect three voltage levels.
3) Autotransformer: Power system for connecting different voltages. Can also be used as a normal step-up or down transformer.
5, according to the core form points:
1) core transformer: for high voltage power transformers.
2) Amorphous alloy transformer: Amorphous alloy core transformer is a new type of magnetic materials, no-load current drop of about 80%, is the energy-saving effect of the ideal distribution transformer, especially for rural power grids and developing regions such as load rate Lower place.
3) shell transformers: special transformers for high current, such as electric furnace transformers, welding transformers; or for electronic equipment and television, radio and other power transformers.
2, according to the cooling method points:
1) Dry-type transformers: rely on air convection for natural cooling or increase fan cooling, used for high-rise buildings, high-speed toll stations and local lighting, electronic circuits and other small-capacity transformers.
2) oil-immersed transformers: rely on oil as a cooling medium, such as oil from the cold, oil-cooled, cold water, forced oil circulation.
3, according to the use of points:
1) power transformers: for power transmission and distribution system of the rise and fall voltage.
2) instrument with transformers: such as voltage transformers, current transformers, for measuring instruments and relay protection devices.
3) test transformer: to produce high pressure, the electrical equipment for high pressure test.
4) special transformers: such as electric furnace transformers, rectifier transformers, adjust the transformer, capacitive transformers, phase-shifting transformers.
Commonly used transformer classification can be summarized as follows:
1, according to the number of points:
1) single-phase transformer: for single-phase load and three-phase transformer group.
2) three-phase transformer: for three-phase system of the rise and fall voltage.
