Escolha sua região e idioma



Dry-type distribution transformers

Distribution transformers enable safe voltage levels for power consumption. But they are often located in densely populated areas or close to sensitive eco-systems. Using oil-filled transformers in such areas could pose hazardous risk of fire and oil-spills to humans and environment. In such cases, dry-type transformers are a preferred alternative. Therefore, to minimize environmental contamination and fire hazard, customers are specifying dry-type transformers more frequently.

Apart from being oil-free, all components of dry-type transformers are in solid form; they do not have flash points, nor do they require bushings. Thus, major causes of fire and oil-spillage are eliminated. Majority of insulating components used dry-type transformers can be also easily recycled. Moreover, the total cost of ownership for dry-type transformers is much lower due to lower cost of installation and no need of fire suppression system.

Hitachi Energy has been leading the development, manufacturing, and supply of dry-type transformers for more than 40 years - with path-leading technological innovation. Hitachi Energy offers a full range of dry-type transformers with primary voltages through 72.5 kV built according to all major standards including IEC and ANSI. 

With recent technological advances, Hitachi Energy has successfully designed and installed a dry-type transformer that can withstand 100 kV / 550kV Basic Impulse Level (BIL). Thus, paving the way for using this sustainable and environment-friendly transformer technology at even sub-transmission level.

These transformers meet strict parameters with respect to electrical system demands and functioning in areas with extreme climatic conditions. Hitachi Energy's dry and cast transformers are virtually maintenance-free and are manufactured in accordance with industry and international standards including ISO 9001.


Why Hitachi Energy?

  • More than 40 years in the market
  • Perfected and developed technologies to include all applications
  • Continuous innovation, research, and development with focus on customers
  • More than 40,000 dry-type transformers operating all around the globe

Our Coil Technologies

Our Solutions

Transformers with Transient Voltage Protection (TVP) Technology

Hitachi Energy launches innovative oil-free and plug-and-play traction transformer

RESIBLOC® Rail dry-type traction transformer with integrated cooling system is designed to reduce CO2 emissions and total operating costs, while increasing energy efficiency

Contact us

Submit your enquiry and we will contact you