Since 1969, when it developed the 154 kV transformer for the first time in Korea, Hyosung Heavy Industries has been manufacturing and operating ultra-high-voltage transformers up to 765 kV. Hyosung Heavy Industries supplies a wide range of transformers up to 765 kV, and 1500 MVA, and with both core form and shell form technology, has the capacity to offer a wide range of solutions to customers. With extensive project experience in over 70 countries around the world, and supplying over 6000 units of power transformers from Changwon, Korea alone, Hyosung are a global transformer brand, satisfying standards of each country, let alone international standards, such as IEC, ANSI, IEEE, NEMA, BS, JIS, JEC etc.