What are the common types of power transformers?
The common types of power transformers.
1. According to the number of phases:
1) Single-phase transformer: for single-phase load and three-phase transformer group.
2) Three-phase transformer: used for the rise and fall voltage of three-phase systems.
2, according to the cooling method:
1) Dry-type transformer: relying on air convection for natural cooling or increasing fan cooling, it is mostly used for small-capacity transformers such as high-rise buildings, high-speed toll stations, local lighting, and electronic circuits.
2) Oil-immersed transformer: rely on oil as cooling medium, such as oil-immersed self-cooling, oil-infiltrated air-cooled, oil-immersed water-cooled, forced oil circulation, etc.
3. According to the purpose:
1) Power transformer: used for the rise and fall voltage of transmission and distribution systems.
2) Instrument transformers: such as voltage transformers, current transformers, measuring instruments and relay protection devices.
3) Test transformer: It can generate high voltage and carry out high voltage test on electrical equipment.
4) Special transformers: such as electric furnace transformers, rectifier transformers, regulating transformers, capacitive transformers, phase shifting transformers, etc.
4, according to the form of winding:
1) Two-winding transformer: used to connect two voltage levels in the power system.
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 a normal boost or post-down transformer.
This article is from ALLICDATA ELECTRONICS LIMITED.