Proceedings of the KSR Conference (한국철도학회:학술대회논문집)

The Korean Society for Railway (한국철도학회)
권호 표지

Design and Fabrication of a LED Headlight for Railroad Vehicles

철도차량용 LED전조등의 설계 및 제작

  • 정병진 ((주)금호HT, 기술연구소) ;
  • 김상기 ((주)금호HT, 기술연구소) ;
  • 조은제 (부산교통공사, 운영본부 차량검수팀) ;
  • 김일권 (한국해양대학교, 대학원 전기전자공학과) ;
  • 길경석 (한국해양대학교, 전기전자공학부)
  • Published : 2011.10.20
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Abstract

Recently, application of LED luminaires has been issued for energy saving plan. In this paper, we carried out a study to replace a low efficacy sealed-beam lamp for headlight of railroad vehicles with LED luminaire. Electrical and optical characteristics of the sealed-beam lamp were analyzed and a LED headlight was designed and fabricated. Total luminous efficacy and rated power of the prototype LED headlight were 82 lm/W ; about 5 times higher, and 40W ; about 4 times lower than the sealed-beam lamp, respectively. Especially, lifetime of the sealed-beam lamp is short as 1,000 hours due to the evaporation and vibration of filament, but that of LED headlight is over 30,000 hours long.

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