• How to Use the Overload Capacity of Dry Type Transformers? The overload capability of dry type transformer The overload capacity of the dry type transformer is related to the ambient temperature, the load condition before the overload (initial load), the insu...
  • How to Maintain A Dry Type Transformer? Today's first-class dry-type transformer is primarily equipment that relies on air convection to cool. Therefore, it has good heat dissipation performance and excellent environmental applicability. Th...
  • Dry Type Transformer Cooling Method The dry mode of the dry type transformer is divided into natural air cooling (AN) and forced air cooling (AF). In the case of natural air cooling, the transformer can be operated continuously for a lo...

Dry Type Transformer Protection

Dry type transformer can use different shells depending on the environmental characteristics and protection requirements. The IP20 protective casing is usually used to prevent the entry of solid foreign objects larger than 12mm in diameter, providing a safety barrier for the live parts. It can prevent small animals (rats, snakes, cats, birds, etc.) from entering, causing malignant malfunctions such as short circuit power failure. If the transformer needs to be installed outdoors, the IP23 protective casing can be used. In addition to the above IP20 protection function, it can prevent water droplets from entering within 60° of the vertical line. However, the IP23 casing will reduce the cooling capacity of the transformer. When selecting, pay attention to the reduction of its operating capacity: the capacity is reduced by about 5%, and the capacity is reduced by about 10%.

The factory usually provides an aluminum alloy casing, which is beautiful and durable. The production plant can provide various protective grades and protective casings of various materials (such as aluminum alloy, steel plate, etc.) according to the actual needs of customers. If the transformer does not have the outer covering, it can usually be represented by IP00 protection.

In summary, when the old transformer is updated and the new type of transformer is selected in the design, if the energy-saving and low-noise dry type transformer can be selected, it can reduce noise, has no pollution, and has strong overload capability and high reliability. It is also possible to tap the potential of power saving.