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主要分类

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主要分类
Main classification
1、按相数分：
1. According to the number of phases:
1）单相变压器：用于单相负荷和三相变压器组。
1) single-phase transformer: for single-phase load and three phase transformer unit.
2）三相变压器：用于三相系统的升、降电压。
2) three phase transformer: it is used for the rise and fall of the three-phase system.
2、按冷却方式分：
2, according to the cooling method:
1）干式变压器：依靠空气对流进行自然冷却或增加风机冷却，多用于高层建筑、高速收费站点用电及局部照明、电子线路等小容量变压器。
1) dry type transformer: air cooling or air cooling is used for air cooling. It is mainly used for high-rise buildings, high speed toll stations, electricity and local lighting, electronic circuits and other small capacity transformers.
2）油浸式变压器：依靠油作冷却介质、如油浸自冷、油浸风冷、油浸水冷、强迫油循环等。
2) oil immersed transformer: using oil as cooling medium, such as oil immersion self cooling, oil soaked air cooling, oil immersion cooling, forced oil circulation and so on.
3、按用途分：
3. According to the use:
1）电力变压器：用于输配电系统的升、降电压。
1) power transformer: it is used for the rise and fall of the transmission and distribution system.
2）仪用变压器：如电压互感器、电流互感器、用于测量仪表和继电保护装置。
2) the transformer is used as a transformer, such as a voltage transformer, a current transformer, a measuring instrument and a relay protection device.
3）试验变压器：能产生高压，对电气设备进行高压试验。
3) test transformer: high pressure can be produced and high pressure test for electrical equipment is carried out.
4）特种变压器：如电炉变压器、整流变压器、调整变压器、电容式变压器、移相变压器等。
4) special transformers, such as electric furnace transformer, rectifier transformer, adjustment transformer, capacitive transformer, phase shift transformer and so on.

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