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What is the difference between oil-immersed and dry-type transformers?
Transformer is an electrical device that we often use in our lives. It can convert high voltage into low voltage to meet our needs of using electrical appliances. Transformers can be divided into two types: oil-immersed and dry-type according to their different insulating materials. So what is the difference between them?
First of all, the oil-immersed transformer uses liquid insulation in terms of insulation, that is, the coil and core of the transformer are immersed in insulating oil, which can improve the insulation strength and prevent the occurrence of discharge accidents. The dry-type transformer uses air insulation and uses special insulating materials to protect the coil and core. In contrast, the insulation performance of the oil-immersed transformer is more stable and reliable.
Secondly, the oil-immersed transformer can dissipate heat better because the insulating oil has good heat dissipation performance. The dry-type transformer needs to dissipate heat through cooling equipment such as fans. This also makes the oil-immersed transformer suitable for use in harsh environments such as high load and long-term operation.
In addition, in terms of maintenance and repair, the oil-immersed transformer needs to replace the insulating oil regularly, while the dry-type transformer does not need such operations. This also makes the dry-type transformer more superior in terms of environmental protection.
In summary, oil-immersed and dry-type transformers each have their own applicable occasions. For some equipment that needs to operate stably at high load for a long time, oil-immersed transformers are more suitable; for some equipment with light loads and high maintenance and environmental protection requirements, dry-type transformers can be selected.
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