Elprom Heavy Industries is a leading manufacturer of high voltage equipment for the electric power industry. Formerly known as Hyundai Heavy Industries Bulgaria, we have provided our customers with innovative and reliable solutions for over 75 years. Our power transformers and tap changers are in operation in electrical grids and industrial enterprises in more than 85 countries on 5 continents. At the core of our business are the two main company divisions for the production of a wide range of power transformers and tap changers. We design and manufacture single and three phase power transformers up to 275 MVA/400 kV, furnace, phase shifting and mobile transformers as well as a full range of tap changers from 200 to 2000 A. All our products are tested and certified in our own and international independent laboratories according to IEC and other standards. We employ more than 500 motivated, skilled, and experienced engineers and professionals at our main facility in Sofia.
