▲ KEPCO head office
Korea Electric Power Corp. (KEPCO) ensures the world's best, leading-edge technology in the power transmission sector led by its 765 kV transmission technology.
KEPCO has expertise and know-how in all project areas ranging from planning to design, construction management and operation. KEPCO has established a world class electric power industry infrastructure along with over 40 years of practical experience. It has lead to the rapid development of South Korea's economy and quality of life. KEPCO is becoming a global force in the world of electric power.
Introduces the KEPCO power transmission technology.

▲ Kim Ssang-Su (president & CEO of KEPCO)
KEPCO is doing its best for highly efficient operation of transmission, transformation, and distribution systems. KEPCO has balanced supply and demand by timely expansion of facilities, formed favorable atmosphere for electric power business by constructing environment-friendly facilities, and improved the reliability of power supplies by constructing wide area distribution control systems and management informatization.

In order to construct environment-friendly power transmission and transformation facilities, KEPCO has improved paths to power facilities, are constructing eco-friendly substations harmonized with the environment, and minimizing environmental impacts with new technologies and construction methods.

In order to determine optimal line roads which consider residents' opinions of construction of power facilities, KEPCO has developed the Power Impact Evaluation System in 2007, which has been applied in model projects.
KEPCO's electric power quality is world-top class. In 2007, the power interruption time per customer was 16.1 minutes, which is far shorter than that of other major electric utilities. KEPCO performs preventive measures with cutting edge instruments, such as preventive diagnosis systems for equipment, and infrared thermal imaging cameras to find heating points.

KEPCO achieved the world's highest load factor level of 73.9 % and has maintained between 73 % to 77 % for the last 5 years. Also, the voltage regulation compliance ratio at 99.9 % and the frequency regulation compliance ratio at 99.8 %, both of which correspond to the world's top levels.

Consistent efforts are made by KEPCO to stabilize the power supply and improve the quality of electricity, through superior facility construction and maintenance of highly efficient systems, such as quick power outrage recovery and automatic system operations.

KEPCO has world class transmission technologies, including a 765 kV transmission system, cross sea transmission lines, environmentally friendly construction, and information technology used to operate power systems.

Thanks to these technologies, KEPCO can supply high quality electricity services. Also, KEPCO has increased labor productivity (17,913 MWh per year, per person in 2007) by around 110 times over the last 40 years, which is higher than other major electric utilities.

◇ Transmission Lines = KEPCO boasts world leading transmission system technologies. KEPCO constructs 765 kV double circuit lines and 345 kV cross-sea transmission line at the world-wide beginning and is operating. Especially, KEPCO domestically develops all of its major equipment technology.

◇ Substations = KEPCO is proud of its world class substation technology. KEPCO constructed and operate the world's first 765 kV outdoor full GIS type substation. This substation plays a leading role in the development of facility management technology and high tech substation construction techniques.

◇ IT in Transmission = KEPCO constructs, operates and maintains state of the art transmission systems using the most advanced IT (Information Technology). In 2006, two years of development, KEPCO began operation of its ERP System, a fully systemized construction management solution. Using this system, KEPCO established streamlined Transmission & Substation construction project management based on WBS (Work Breakdown Structure). KEPCO also created standardized project models.

TGIS (Transmission & Substation Geographic Information System) is the GIS based on the national numerical map. This system manages national wide T&S facilities with GIS. TGIS effectively supports operation and maintenance of T&S facilities.

SOMAS (Substation Operating result Management System) accumulates all substation operating data and utilizes that information for system planning and effective system operation.

Total transmission information system is an optimized tool for power system management. This totally web-based system conducts fault analysis, monitors power system status and watches submarine power cables.

◇ Overseas Transmission Projects = KEPCO entered the overseas markets 10 years ago when KEPCO participated in rehabilitating a thermal power plant in Malaya, Philippines. Since then, KEPCO's overseas projects have accumulated over $1 billion in profit. KEPCO has conducted overseas transmission projects, including consulting services financed by the EIB for WAPP (West African Power Pool), and the Power Master Plan financed by the World Bank for Cambodia.

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