Sensonics supplies Sentry range to Romania

Sensonics has supplied more than 25 vibration-monitoring systems to Romania for a range of hydro turbine plants.

This was the latest project Sensonics completed for Hidroelectric SA in partnership with SC TN Grup Exim Srl, which installed the vibration-monitoring systems.

The Sensonics Sentry range measures absolute bearing vibration and shaft eccentricity in combination with speed and rotor to stator air gap.

A phase reference module is included in each system for the generation of a once per revolution timing pulse to enable dynamic and balancing analysis of the plant.

Sensonics's PZS range of shear mode accelerometers have been fitted to all bearing measurement locations and have a frequency measurement response down to 0.4Hz in combination with low overall integrated noise.

This is essential for Hidroelectrica's turbines because generating running speed can be as low as 130rpm.

This transducer, in combination with the Sentry protection modules, allows operators to measure peak vibration displacement levels below tens of micro metres at the rotational speed.

The systems provide turbine vibration measurements for the plant engineers to assess the balance of the various parts of the turbine/generator and plan maintenance accordingly.

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