A Study on the Effective Utilization Plan through Field Investigation and Analysis with Power Transformers in Domestic Areas

  • Shin, Heung-Sik (Korean Electrical Safety Corporation) ;
  • Lee, Jae-Cheon (Systems Engineering Department at Aju University) ;
  • Bai, Seok-Myung (IT Technology Development Center at the Electrical Safety Research Institute) ;
  • Kim, Seon-Gu (Machinery Research Group at the Electrical Safety Research Institute) ;
  • Kim, Jin-Tae (Electrical Safety Research Institute) ;
  • Kim, Gi-Hyeon (IT Technology Development Center of the Electrical Safety Research Institute) ;
  • Jeong, Jong-Wook (Machinery Safety Research Group in the Electrical Safety Research Institute of the Korea Electrical Safety Corporation) ;
  • Bang, Seon-Bae (Electrical Safety Research Institute)
  • Published : 2007.05.31


Korea is highly dependent on foreign countries for energy while at the same time having a high energy-consumption industrial structure. Therefore, logical improvements in energy use efficiency and nationwide energy saving are becoming more and more important in coping with the worldwidehigh oil prices and environmental issues such as listed in the Kyoto Protocol to the United Nations Framework Convention on Climate Change. Consequently, a study was conducted on the average annual load factor in domestic areas to set a reasonable and reliable technology standard plan for high-efficiency transformers. The average annual load factor in Korea was discovered to be 18.4[%] classified by industry. This factor is expected to be used in arranging a domestic standard for a minimum efficiency system for transformers, and in reviewing and supplementing the standard transformers plan for the High Energy-Efficiency Appliance Certification. The expected effect from the establishment of the technology standards plan for highly efficient transformers is the expansion of the manufacturing and distribution of highly efficient transformers that are suitable for domestic use. These will lead to electricity cost savings for users, strengthening the related industries' market competitive powers and the effective reduction of greenhouse gases on a national level by drastically reducing loss from transformers, which accounts for a large portion of the total electric supply losses.


  1. Standby Power and High-Efficiency electromotor technology standard study report, KERI, July 2006
  2. A study on improvement for High efficency management standard and related standard International Standard, MOCIE,June 2005
  3. The Analysis of inderstrial technology power transformer, KlSTI. 2004
  4. The newest technology trend for prevention of diagnosis technology, KERI, April 2005
  5. A study on improvement for High efficency management standard and related standard International Standard), 2004-E-NC16-P-01-3-000, MOCIE, pp.268-277, June 2005
  6. KPX Power Statistical Record, 2005
  7. KOEMA Industrial Statistical Record,
  8. A study on distribution of electricity transformer for optimum load management plan, SSU Ph.D Park chang ho, June 2005