Practical contaminant analysis of lubricating oil in a steam turbine-generator

Authors
Ahn, HSYoon, ESSohn, DGKwon, OKShin, KSNam, CH
Issue Date
1996-02
Publisher
BUTTERWORTH-HEINEMANN LTD
Citation
TRIBOLOGY INTERNATIONAL, v.29, no.2, pp.161 - 168
Abstract
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.
ISSN
0301-679X
URI
https://pubs.kist.re.kr/handle/201004/144553
DOI
10.1016/0301-679X(95)00003-M
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KIST Article > Others
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