Applications
Corrugated oil tanks are typically used in distribution transformers of 35kV and below. Their corrugated walls improve heat dissipation efficiency, and they offer a compact structure and good sealing. However, their heat dissipation capacity is limited by the tank's surface area. Typical applications include small distribution transformers and sealed transformers.
When the voltage is higher or the capacity is larger, the heat dissipation requirements are also higher. In this case, finned radiators are needed. Finned radiators consist of multiple parallel welded fins with internal oil channels. The finned structure increases the heat dissipation area, providing good air convection and thus excellent heat dissipation performance. They also have good overall rigidity and can be installed close to the transformer tank, saving space. They are widely used in medium to large oil-immersed transformers from 10kV to 110kV.
Pad-mounted transformers are typically used in urban power distribution networks: residential areas, commercial areas, schools, hospitals, and other areas with high safety and aesthetic requirements. They usually have large access doors for easy inspection and maintenance of internal equipment.
Pole-mounted transformers are typically used in overhead power distribution networks in vast areas such as rural areas, suburbs, and towns where loads are relatively dispersed. They do not occupy land resources, have short construction cycles, and are low-cost.
Prefabricated substations have the core advantage of "factory prefabrication and rapid deployment," and have a wide range of applications, such as data centers, industrial and mining enterprises, wind-solar hybrid booster stations, and rail transit. Their high degree of modularity and integration significantly reduces land area and operating costs.
