Abstract
The Effect of Flywheel Unbalance on Gear Noise in the Hydraulic Power Plant Turbo-Generator. Hydraulic power plants are systems that produce electrical energy with high investment costs. In order to fulfil their goals, investments should create conditions for a safe production of energy in a long lasting and reliable way, and with the required power and quality. These goals are possible to reach by an optional control process linked to a systematic monitoring of the operating machinery state, using the method of vibration diagnostics. Lately, there has been an increase of noise level in the hydraulic power plants.
Highlights
Technical diagnostics of machines and equipment based on vibration measurement is currently applied in all industry sectors with substantial economic effect
In hydroelectric power plants, the vibration measurement is used for operational condition monitoring
After general maintenance in the body of the small hydroelectric power plant, an increased vibration occurred at the designated measuring points
Summary
Technical diagnostics of machines and equipment based on vibration measurement is currently applied in all industry sectors with substantial economic effect. In the technically advanced countries, a maintenance based on the actual determination of the reported system condition, is applied in hydroelectric power plants. In hydroelectric power plants, the vibration measurement is used for operational condition monitoring. After general maintenance in the body of the small hydroelectric power plant, an increased vibration occurred at the designated measuring points. The maximum value of vef, measured on the important points of the machine, indicates the vibration severity U according to:.
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