In a gas turbine plant in Algeria, two of the three turbine generators exhibited increased vibration levels shortly after commissioning.

Based on the stored online vibration data, VPC was able to analyze the history of the vibration curves since initial commissioning. Based on the results, VPC performed modal and operational waveform analyses at all three plants to determine the dynamic behavior.

In cooperation with the system manufacturer, actions were defined which subsequently led to safe operation of the three turbine generators.

Services of VPC at a glance

• Long-term evaluation of the online vibration data of the three gas turbine generators
• Carrying out operational waveform analyses on two gas turbine plants to determine the modes of oscillation during duty operation of the turbine sets
• Carrying out modal analyses on the gas turbine, the generator and on the foundation of the plant to determine the natural frequencies and eigenmodes
• Consultancy services for the client vis-à-vis the system manufacturer and the plant operator