Ahn, HS Yoon, ES Sohn, DG Kwon, OK Shin, KS Nam, CH 2024-01-21T19:42:04Z 2024-01-21T19:42:04Z 2021-09-01 1996-02 0301-679X https://pubs.kist.re.kr/handle/201004/144553 In order to identify the level of contamination of lubricating oil in a turbine-generator at a local power plant, contaminant analysis was conducted. The contaminant analysis was also used to assess the condition of tribe-components such as bearings, gears and bearing deflectors. Oil samples were taken and the debris in the used lubricating oil were analysed off-line to provide information for the construction of an on-line monitoring system. Statistical analysis of debris was also carried out to determine the quantitative trend of oil contamination. The on-line contaminant monitoring system was then developed with the capabilities to provide an early warning of excessive oil contamination and to detect any impending failures of tribe-components. Guidelines necessary for maintenance engineers such as preset warning level and a trip level (automatic shutdown) of contamination were established. In the system, a device utilizing a filter blockage principle was employed to measure the contamination level. The on-line system developed was installed and field tested in a turbine-generator at a local power plant. During the two year period of investigation, the lubricating system and related tribo-components were revealed to be in normal condition. English BUTTERWORTH-HEINEMANN LTD Practical contaminant analysis of lubricating oil in a steam turbine-generator Article 10.1016/0301-679X(95)00003-M 1 TRIBOLOGY INTERNATIONAL, v.29, no.2, pp.161 - 168 TRIBOLOGY INTERNATIONAL 29 2 161 168 scie scopus A1996UA33300009 Engineering, Mechanical Engineering Article