Overview
- Summary
- Dongwoo Electric Co., Ltd. is a specialized manufacturer of transformers, established in 1988, leading the localization of epoxy-molded instrument transformers. The company is an innovative strong small and medium-sized enterprise aiming for the global market by providing sustainable energy solutions through eco-friendly and digital power equipment technologies.Dongwoo Electric Co., Ltd. is a specialized manufacturer of transformers, established in 1988, leading the localization of epoxy-molded instrument transformers. The company is an innovative strong small and medium-sized enterprise aiming for the global market by providing sustainable energy solutions through eco-friendly and digital power equipment technologies.
- Key Products/Technologies
- Instrument Transformers: Indoor type CT (DAB-401A, DAB-411A(W)), Outdoor type VT (DPO-301N, DPO-209S), Indoor Epoxy Mold type MOF (DMI-213N), Plug in type Epoxy Mold MOF (DMS-211N), Capacitive V.D (DVD-12NI), Sensor Relay (DSR-1,2), and various other models [Database, 13, 20].Instrument Transformers: Indoor type CT (DAB-401A, DAB-411A(W)), Outdoor type VT (DPO-301N, DPO-209S), Indoor Epoxy Mold type MOF (DMI-213N), Plug in type Epoxy Mold MOF (DMS-211N), Capacitive V.D (DVD-12NI), Sensor Relay (DSR-1,2), and various other models [Database, 13, 20].
- Epoxy Insulators: Epoxy Mold Insulation Rod (DIR-5500H3,8000H,H1), Epoxy Mold Post Insulator (DIP-0720H,1450T), producing insulators for distribution and transmission GIS [Database, 10, 20].Epoxy Insulators: Epoxy Mold Insulation Rod (DIR-5500H3,8000H,H1), Epoxy Mold Post Insulator (DIP-0720H,1450T), producing insulators for distribution and transmission GIS [Database, 10, 20].
- Eco-friendly Power Equipment: Gas Insulated Switchgear (GIS) utilizing eco-friendly insulating gases (g3, N2/O2, etc.) to replace SF6 gas, and an eco-friendly product lineup using bio-epoxy materials.Eco-friendly Power Equipment: Gas Insulated Switchgear (GIS) utilizing eco-friendly insulating gases (g3, N2/O2, etc.) to replace SF6 gas, and an eco-friendly product lineup using bio-epoxy materials.
- Digital Power Equipment and Solutions: Development and supply of Low Power Instrument Transformers (LPIT), big data-based diagnostic systems, Insulation Monitoring System (DMS), digital substation operating systems, and MV/LV AC and DC product groups.Digital Power Equipment and Solutions: Development and supply of Low Power Instrument Transformers (LPIT), big data-based diagnostic systems, Insulation Monitoring System (DMS), digital substation operating systems, and MV/LV AC and DC product groups.
- Core Technological Capabilities: Expertise in epoxy insulation technology, eco-friendly insulating gas technology, bio-epoxy material technology, Low Power Instrument Transformer (LPIT) technology, and integrated sensor and communication technologies.Core Technological Capabilities: Expertise in epoxy insulation technology, eco-friendly insulating gas technology, bio-epoxy material technology, Low Power Instrument Transformer (LPIT) technology, and integrated sensor and communication technologies.
- Core Advantages
- Over 30 years of industry experience and unique expertise in epoxy insulation technology.Over 30 years of industry experience and unique expertise in epoxy insulation technology.
- Leadership in the localization and development of epoxy-molded instrument transformers and insulators for distribution to ultra-high voltage applications.Leadership in the localization and development of epoxy-molded instrument transformers and insulators for distribution to ultra-high voltage applications.
- Pioneering eco-friendly power equipment technologies, including SF6-alternative eco-friendly insulating gases and bio-epoxy material applications.Pioneering eco-friendly power equipment technologies, including SF6-alternative eco-friendly insulating gases and bio-epoxy material applications.
- Technological competitiveness in digital power equipment, such as Low Power Instrument Transformers (LPIT) and big data-based predictive diagnostic solutions.Technological competitiveness in digital power equipment, such as Low Power Instrument Transformers (LPIT) and big data-based predictive diagnostic solutions.
- Continuous technological innovation through national R&D projects related to renewable energy, smart grids, digital substations, and gas-insulated switchgear.Continuous technological innovation through national R&D projects related to renewable energy, smart grids, digital substations, and gas-insulated switchgear.
- Securing major domestic and international quality and safety certifications, including CE, JIEC, UL, KS, and KEPIC-EN.Securing major domestic and international quality and safety certifications, including CE, JIEC, UL, KS, and KEPIC-EN.
- An integrated production system with in-house capabilities for product design, manufacturing, and testing.An integrated production system with in-house capabilities for product design, manufacturing, and testing.
- Recognized technological prowess and growth potential, evidenced by selections for 'Strong Small and Medium-sized Enterprises 100' (2019), 'National Representative Innovative Companies 1000' (2020), and 'Energy Specialized Company' (2021).Recognized technological prowess and growth potential, evidenced by selections for 'Strong Small and Medium-sized Enterprises 100' (2019), 'National Representative Innovative Companies 1000' (2020), and 'Energy Specialized Company' (2021).
- Target Industrie
- Power Generation and Transmission/Distribution Systems: Supply of essential equipment for stable operation of power systems in hydro/thermal power plants and nuclear power plants.Power Generation and Transmission/Distribution Systems: Supply of essential equipment for stable operation of power systems in hydro/thermal power plants and nuclear power plants.
- Industrial Plants: Application of power equipment in various industrial plant sectors, including steel, chemical, and shipbuilding.Industrial Plants: Application of power equipment in various industrial plant sectors, including steel, chemical, and shipbuilding.
- Transportation Infrastructure: Establishment of power supply and control systems for railway and subway systems.Transportation Infrastructure: Establishment of power supply and control systems for railway and subway systems.
- Eco-friendly Energy and Smart Infrastructure: Renewable energy generation complexes, smart city infrastructure, Energy Storage Systems (ESS), and Low Voltage Direct Current (LVDC) systems.Eco-friendly Energy and Smart Infrastructure: Renewable energy generation complexes, smart city infrastructure, Energy Storage Systems (ESS), and Low Voltage Direct Current (LVDC) systems.
- Digital Substations and Smart Grids: Provision of core technologies and solutions for unmanned substation automation and intelligent power grid operation.Digital Substations and Smart Grids: Provision of core technologies and solutions for unmanned substation automation and intelligent power grid operation.
- Major Markets
- Indonesia, PhilippinesIndonesia, Philippines
- Certifications/Patents
- Patents Held: 30 patents (as of January 2026), 56 patents (according to RnDcircle).Patents Held: 30 patents (as of January 2026), 56 patents (according to RnDcircle).
- Quality Management Systems: ISO 9002 / KSA 9002 certification (1997), Anti-Bribery Management System (ISO 37001) acquisition (2024).Quality Management Systems: ISO 9002 / KSA 9002 certification (1997), Anti-Bribery Management System (ISO 37001) acquisition (2024).
- Product and Technology Certifications: KEPIC-EN Nuclear certification (2004), INNO-BIZ certification (2006, 2008).Product and Technology Certifications: KEPIC-EN Nuclear certification (2004), INNO-BIZ certification (2006, 2008).
- National Standard Certification: KS C 1707 (Instrument Transformers for Power Metering) certification (2010).National Standard Certification: KS C 1707 (Instrument Transformers for Power Metering) certification (2010).
- International Product Certifications: CE, JIEC, UL certifications.International Product Certifications: CE, JIEC, UL certifications.
- Awards: Recipient of the Dongtap Industrial Medal (2017).Awards: Recipient of the Dongtap Industrial Medal (2017).
Introduction
Key Products
Location
34 Oseongseo-ro, Anjung-eup, Pyeongtaek, Gyeonggi-do, South Korea
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