Proceedings of the KIEE Conference (대한전기학회:학술대회논문집)

The Korean Institute of Electrical Engineers (대한전기학회)
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A study on the overhaul method for a Tandem type EDG on Nuclear Power Plant

원자력발전소 Tandem 형 비상디젤발전기의 최적 정비 방안 연구

  • Han, Sung-Heum (Nuclear Engineering & Technology Institute, Korea Hydro & Nuclear Power Co.) ;
  • Lim, Woo-Sang (Nuclear Engineering & Technology Institute, Korea Hydro & Nuclear Power Co.) ;
  • Ha, Che-Wung (Nuclear Engineering & Technology Institute, Korea Hydro & Nuclear Power Co.)
  • 한성흠 (한국수력원자력(주) 원자력발전기술원) ;
  • 임우상 (한국수력원자력(주) 원자력발전기술원) ;
  • 하체웅 (한국수력원자력(주) 원자력발전기술원)
  • Published : 2008.07.16
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Abstract

An Emergency Diesel Generator (EDG) manufactured by a French company Wartsila SACM, is a tandem type engine, consisted of two 10 cylindered diesel engines on each side. Manual provided by the manufacturer states that engine bearing requires inspection every 15 years. However, it is difficult for an inspector to access through a manhole located in the lower compartment of engine. Furthermore, during a routine or scheduled maintenance, it is not possible to disassemble main engine bearing and crank shaft, and perform inspection. Two methodologies are suggested here to resolve the problem. One method is to lift the engine and partially perform the maintenance service, and the other method is to disassemble the engine completely and to perform maintenance service by the manufacturer. Pros and cons of two methodologies were thoroughly compared.

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