News Release

A Compact and Lightweight Design to Reduce Installation Space. Launching a Cast Resin Transformer for the Global Market

　As renewable energy expands and the social implementation of generative AI advances, the construction of data centers and semiconductor factories is increasing in Japan and overseas. This has resulted in a rapid increase, domestically and internationally, in demand for transmission and distribution equipment, which is essential for stable supply of electricity. One such piece of equipment is cast resin transformers, the Southeast Asian market for which is expected to grow at an average annual rate of 6.1% (2023 - 2030, according to research by FE).
　Transformers are installed in power stations and substations, where they change the voltage of electricity to suit the location and application, such as for factories or buildings.
　While oil-immersed transformers use oil to insulate the inside of the equipment, cast resin transformers use a flame-retardant resin to cover the wires (windings) around the internal iron core to provide both insulation properties and disaster prevention performance. Because they have a lower fire risk than oil-immersed transformers, they are often installed inside data centers, semiconductor factories and other general industrial factories, and buildings.
　In Japan, the primary voltage of medium-voltage transformers in buildings and medium-sized factories is generally 6.6 kV, but overseas, it can be as high as 22 kV, necessitating larger transformers than those used in Japan. To address the growing need to reduce the installation space for transmission and distribution equipment, FE has recently released cast resin transformers for Southeast Asia and the global market that are smaller, lighter, and more cost competitive.