A dry-type transformer, also known as a dry-type transformer, is a type of transformer that does not use liquid or oil as a cooling and insulating medium. Instead, it relies on air or solid materials for cooling and insulation. Dry-type transformers are used in a wide variety of applications due to their safety, efficiency and environmental friendliness. Some of the key features and benefits of dry-type transformers are listed below:
CONSTRUCTION: Dry-type transformers consist of two windings, an input winding (primary) and an output winding (secondary), encapsulated in a ventilated enclosure. The windings are insulated with materials such as epoxy, polyester or other resin-based compounds, which provide excellent electrical insulation.


Cooling: The dry-type transformer is cooled by natural convection or forced air cooling. Vents and cooling fans promote airflow and keep operating temperatures within safe limits.
Safety: One of the main advantages of dry-type transformers is their increased safety. Since they contain no flammable liquids or oils, the fire risk and environmental hazards associated with leaks or spills are significantly reduced. This makes them suitable for installation in sensitive environments such as hospitals, schools, commercial buildings and underground facilities.
Maintenance: Dry-type transformers require minimal maintenance compared to liquid transformers. They eliminate the need for oil monitoring, leakage prevention and periodic oil testing. This reduces operating costs and minimizes downtime.
Efficiency: Dry-type transformers can achieve high levels of efficiency, especially when designed with modern insulation materials and advanced manufacturing techniques. Increased efficiency helps to save energy and reduce operating costs throughout the transformer's lifetime.
Environmentally friendly: Dry-type transformers are considered more environmentally friendly because they do not use oil or other hazardous substances. They eliminate the risk of oil leaks or spills and reduce the potential for soil and groundwater contamination.
Dry-type transformers are commonly used in a variety of applications, including commercial buildings, industrial facilities, data centers, renewable energy systems, and areas where fire safety and environmental concerns are critical.
It is important to note that specific designs, ratings and standards for dry-type transformers may vary depending on the application and local regulations. When selecting a dry-type transformer, it is recommended that you consult an electrical engineer or professional familiar with your specific requirements.