电力变压器按冷却和绝缘方式可分为干式变压器和油浸式变压器。
Power transformers can be classified into dry-type transformers and oil-immersed transformers based on their cooling and insulation methods.
Working principle of power transformers:
Using the principle of electromagnetic induction, an alternating voltage is converted into another voltage, primarily used for changing voltage levels and power transmission. The secondary load is comparatively large and cannot operate under short-circuit conditions.
电力变压器的工作原理：通过电磁感应原理，将一种交流电压转换为另一种电压，主要用于电压等级的改变和功率传输，次级负载较大，不能短路运行。
Structural characteristics of power transformers:
The number of turns of the primary and secondary windings is designed according to the voltage ratio, and the core material is chosen to reduce losses. They have a large capacity and can withstand load currents.
电力变压器的结构特点：一次、二次绕组匝数根据电压比设计，铁芯材料选择以降低损耗，容量较大，可承受负载电流。
Operational requirements of power transformers:
The secondary load must operate normally; short circuits may damage the equipment.
电力变压器的工作要求：次级负载正常运行，短路会损坏设备。
Applications of power transformers:
They are used for voltage level conversion and power transmission in electrical power systems.
电力变压器的用途：用于电力系统的电压等级转换和功率传输。
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