Abstract

The paper presents many years of experience related to the activities of technical maintenance of mechanical and electrical plants. It shows the analysis of the cause of many malfunctions, faults, failures and system failures that occur in mini hydropower plants. Systems of mini hydropower plants are discussed in terms of improving the technical maintenance by functional units: turbine regulator with turbine, mechanical assemblies (multiplier and flywheel), flexible couplings that connect plant assemblies, electrical circuits, lubrication systems, automation and high-voltage installations. Below is a brief overview of the application possibilities of technical diagnostics i.e. of a monitoring system in mini hydropower plants.

Highlights

  • The paper presents many years of experience in the technical maintenance of rotating mechanical and electricalVOJNOTEHNIČKI GLASNIK / MILITARY TECHNICAL COURIER, 2017, Vol 65, Issue 3 installations

  • The causes of many malfunctions, faults, operation failures and system failures are assessed from the scientific point of view while contributing to the improvement of technical maintenance systems used for mini hydropower plants, which are of particular importance for the production of electric power

  • A well-chosen concept of maintenance with a proper organization, programming and realization of certain maintenance activities as well as with a good level of personnel training and provided maintenance has a significant impact on increasing the production of electric power, reduction of maintenance costs, fewer faults, failures in operation and system failures

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Summary

Introduction

VOJNOTEHNIČKI GLASNIK / MILITARY TECHNICAL COURIER, 2017, Vol 65, Issue 3 installations. The causes of many malfunctions, faults, operation failures and system failures are assessed from the scientific point of view while contributing to the improvement of technical maintenance systems used for mini hydropower plants, which are of particular importance for the production of electric power. The processes of technical maintenance (intermediate overhaul, general revision and general system overhaul) are directly connected to the extension of the service life of mechanical and electrical installations. This systematic and comprehensive process applied in mini hydropower plants is an inevitable and logical process in the plant operational life

Mini hydropower plants systems
Type HPPs
Maintenance of mechanical assemblies in mini hydropower plants
Technical maintenance of mini hydropower plant bearings
Radial clearance reduction over including min max mm mm
Technical maintenance of flexible couplings in mini hydropower plants
Technical diagnostics and monitoring systems in mini hydropower plants
Conclusion

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