KEPCO Journal on Electric Power and Energy

Korea Electric Power Corporation (한국전력공사)
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System Effectiveness of AirDam for Natural Ventilation by U-CDS

U-CDS의 자연환기를 위한 AirDam시스템의 효과에 대한 연구

  • Seungchul, Kim (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Boohyun, Shin (KEPCO Research Institute, Korea Electric Power Corporation) ;
  • Gidae, Oh (KEPCO Research Institute, Korea Electric Power Corporation)
  • Received : 2022.01.19
  • Accepted : 2022.09.16
  • Published : 2022.12.30
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Abstract

Recently, there has been an increasing demand for electric equipment installed on the ground to be installed in an underground space. Accordingly, U-CDS (Underground-Compact Distribution Station) installed in the underground is supplied, and to improve its weak ventilation performance, an Airdam-type structure was applied and the effect was analyzed. As a result, the temperature around the transformer was reduced by up to 9.5 degrees, and the air flow increased by up to 1.17 m/s. Airdam structure can be supplied in the form of various sculptures because it is possible to design freely while maintaining its principle.

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Acknowledgement

본 연구는 한국전력공사의 주력연구개발과제(R20DA10) 연구비에 의해 지원되었음

References

  1. Gidae Oh, Kangsik Kim, Sangbong Kim, Sangkeun Moon, "A Study on Temperature rising test of the Underground Compact Distribution Substation", Proceedings of the Korean Society of Electrical Engineers Conference, pp.2005-2006, 2019.
  2. ORMAZABAL, "General Instructions of Underground Transformer Substations.", Parque Cienti fico y Tecnolo gico de Bizkaia, France, 2008.
  3. Boohyun Shin, Gidae Oh, Seungchul Kim, Gwanghoon Jung, "A Study on IEC Testing of Underground Compact Distribution Station", Proceedings of the Korean Society of Electrical Engineers Conference, pp.2150-2151, 2021.
  4. Sangwoo Kim, Jun Kim, Seonghun Lim, "Experimental Study for Natural Ventilation of Underground Space", Proceedings of the academic presentation of the Korean Institute of Architecture, pp.622-622, 2017.
  5. Gidae Oh, Kangsik Kim, Sangbong Kim, Injin Seo, "A Study on Estimation of Ventilation Performance in the Underground Transformer Vaults", Proceedings of the Korean Society of Electrical Engineers Conference, pp.1529-1530, 2017.
  6. IEC Standard, IEC 62271-202, 2014.