TORSO Protect
Protecting shaft lines against harmful torsional vibrations
TORSO Protect eliminates your worries for excessive torsional vibrations in today’s situation of constantly changing grid circumstances. This high-end system uses specific sensors mounted on toothed wheels or shaft ends to monitor the shaft line for the presence of harmful torsional vibrations. Whenever the vibrations reach pre-defined thresholds, the unit is tripped automatically, protecting it from severe damage.
The system’s unique, intelligent detection strategy means that no harmful situation goes unnoticed while avoiding false alarms.
How TORSO Protect works
Initial modeling of the shaft line
Sensors are installed at different locations along the rotor with built-in redundancy to allow reliable signal processing.
Alarm or trip signals can be wired either to the control system or to one of the generator relays. Frequency and amplitude signals of monitored frequency bands can be wired to the DCS or SCADA system.
Initial modeling of the shaft line
We carry out a specific mode shape analysis on your rotor equipment, allowing us to select the best locations for the sensors in accordance with the expected mode shapes. We subsequently validate the results of this initial modelling with on-site measurements, ensuring reality-based detection and protection.
Monitoring
Frequency and peak amplitude of critical resonance frequency bands are continuously monitored by the system.
The common alarm/trip strategy comprises a watchdog alarm, an event detection level alarm, and a trip level alarm.
Initial modeling of the shaft line
Through its customizable interface, measurement data are presented for analysis, diagnosis, and identification of remedial action by power plant staff or ENGIE Laborelec experts.
