Vibration diagnosis
Hydro Exploitation provides a complete
service for vibration diagnostic solutions (measurements and analysis) on all
types of hydroelectric machines.
Vibration monitoring of hydroelectric units is an essential task to ensure safe operation and reliability of the units.
This monitoring makes it possible to determine
the evolution in the vibratory behaviour of a unit during its life cycle or after an overhaul. It ensures early detection of any abnormalities in the vibration fingerprint. The customer is provided with a detailed vibration diagnostic of the machine (machine balancing, alignment problem, etc.).
Methodology
- on-site inspection of the units, determination of appropriate measurement areas
- preparation of the measurement equipment and preparation of the unit
- visual inspection of the unit
- on-site measurement under actual operating conditions (velocity sensors, proximity probes)
- determination of vibration levels for all operating modes
- analysis of the results and recommendations for operational considérations (spectrum, orbits, Bode diagram, polar plot, etc.)
- oil film monitoring
- balancing
Specific skills
HYDRO Exploitation’s specialists :
- offer a complete vibration measurement service and have the required equipment at their disposal
- have the know-how specifically required for this type of measurement for diagnostics and analysis
- have considerable experience in the management of hydroelectric facilities : they therefore have a highly practical
- global view of each situation
- provide effective solutions for continuously monitoring the vibrations of the sets in operation
Client benefits
The owner of the hydroelectric facility has the benefit of :
- a complete service from Switzerland’s very few experienced specialists
- relevant information about the vibratory behaviour of the machines in operation
- the assurance that its hydroelectric units are operating under optimal conditions
- expert advice on any improvements to be made (alignment, balancing, etc.)
Watch our film and discover our cutting-edge capabilities: use of the laser tracker, vibration control on a shaft line and performance measurement.
Additional services
Transient phenomena modelling / simulation
To ensure the safety of hydroelectric facilities, HYDRO Exploitation has developed a proactive, systematic method of identifying, assessing and managing operational risks.Thermodynamic efficiency measurement
The hydroelectric units must operate at maximum performance in order to ensure the plant is running at peak profitability. Measuring the thermodynamics quantifies the performance of the plant in terms of its efficiency, flow and power by recording, with the greatest accuracy possible, the heating of the flow through the turbine.References
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