Key factors influencing steam turbine unit reliability are provided in this study, along with mitigation techniques and optimization tactics to increase unit reliability for the period between 2021 to 2023. Articles covering the application of various maintenance strategies were researched, and it was discovered that each strategy has its own distinct ideas, guiding principles, methods, and difficulties for actual industrial use. Mixed method design, also called explanatory sequential, which incorporated both qualitative and quantitative approach, was used in this study to identify contributing factors arising during the execution of maintenance projects that resulted in the unreliability of steam turbine units in operation by interviewing members of the maintenance execution team.  The article ends with important suggestions for further study by outlining maintenance optimization techniques that would improve the operational units’ reliability. It can be concluded that the age of the steam turbine units has a major effect on selecting a suitable maintenance strategy that will ensure reliability of units in operation.

Keywords

Reliability, Steam Turbine Units, Maintenance Strategies, Mixed Method.