SEW Vibration Monitoring Solution
Problems
In most turbine generators, excessive vibration and thermal cycling weakens the insulation; causing stator bar fractures and fire. It becomes extremely dangerous for large turbines which are hydrogen cooled and might lead to an explosion.
QPS Solutions
Customer can avoid such risks by using QPS condition monitoring solution with VibroFibreTM vibration sensors and system. QPS has completed 5 years of development in the VibroFibreTM Technology and successfully adapted it into a condition monitoring solution for turbine generators in power plants around the world. This solution prevents unplanned down time by warning against arcing and fire by the measurement and trending of vibration amplitudes in the stator end windings. An alarm can be preset which stops the machine for repair before the disaster occurs, resulting in a life extension of such critical power plant assets by at least 200%.
QPS Unique Advantages
Inside the power generators, there are high voltages and strong electromagnetic fields, it is such a hostile environment that ordinary piezoelectric vibration sensors would simply not work. Yet, until now, only single channel fiber optic sensors are available, they are hard to manage and require one full week of down time to install. QPS uses a bundle of VibroFibreTM sensors and an Integrated Signal Conditioning unit to simplify the architecture, turning this complex problem into a simple one-day installation by gluing the sensors onto the end cap with high temperature epoxy. On top of that, QPS VibroFibreTM sensors are much less expensive because of our integrated solid state technology. Return on investment is instantaneous.
For more detailed information, please download the following application note.
VibroFibreTM Sensor Application Note(pdf file, 8.2MB)