"The transformer is an integral part of modern electrical power systems. In short, its function is to convert low-current, high-voltage electricity into high-current, low-voltage electricity (or vice versa) with virtually no energy loss." (Coltman, 1988) Transformer selection is an important factor in energy efficiency. Transformers play an important role in the electricity distribution system and account for a large part of energy consumption. Therefore, if the choice of transformer is not made correctly, it can have negative consequences in terms of energy efficiency and economics.
A dry-type transformer is a type of power transformer and as the name suggests, it is a type of transformer that does not contain any liquid oil or insulating material. These types of transformers are usually made using thermo-hard plastics or epoxy resins as insulating materials.
Dry type transformers are used to convert from high voltage to low voltage or from low voltage to high voltage. The cores of these transformers are formed by special arrangements of magnetic materials and the windings are usually made of copper wires. Dry-type transformers are used in many applications, from power transmission lines to industrial plants, commercial buildings and even homes.
The advantages of dry-type transformers are:
Dry-type transformers are generally designed for indoor or closed environments. In applications that need to be used in harsh conditions such as outdoors or underwater, liquid-insulated transformers are more commonly preferred.
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