Professional paper

OIL QUALITY MANAGEMENT IN ELECTRIC POWER PLANTS

Bruno Antolović

Abstract

Abstract
As a part of total proactive maintenance strategy, last few years on-line oil quality monitoring systems (contamination and water sensors) were successfully introduced in electric power plants. They enable user to be warned in time to problems in system.
Particulate contamination - presence and circulation of particles in a hydraulic system leads to surface damages causing basic mechanical wear (abrasion, erosion and material fatigue). When moisture penetrates into hydraulic and lubricating oils, it has degradable effect, both to the oil and to the machine. Contamination of hydraulic oil with water causes numerous difficulties such as: additives degradation, oil oxidation and ageing, corrosion, oil foaming, oil film thickness decrease, oil sludge... These problems can be easily solved by implementation of continuous control which warns maintenance staff to perform activities which eliminate cause.
Oil quality management programme in praxis takes into consideration actual technical standards and measuring methods in the field of hydraulic systems analysis. Through effective management of the root causes of failure, including a major focus on on-line monitoring, we can substantially reduce the frequency of unscheduled shutdowns.

Keywords

lubricating oil; hydraulic oil; lubricant application properties in use; automatic supervisory system; hard particle contamination; water saturation level; emulsified watter contamination

Hrčak ID:

7162

URI

https://hrcak.srce.hr/7162

Publication date:

31.12.2004.

Article data in other languages: croatian

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