Excited by power system transients, load unbalances and disturbances, turbine-generators can be susceptible to torsional vibrations occurring at or near rotor torsional natural frequencies. When torsional vibrations are excessive, the resulting cumulative fatigue damage can reduce life in components such as shafts, rotors and blades. If high levels of torsional vibrations continue without corrective action, severe component breakdowns can occur, causing equipment damage and forced outages.
Siemens Energy offers an advanced monitor – the Siemens Digital Torsion Monitor (DTM). It can be applied to all OEM turbine-generator configurations. The monitor features engineering analysis capabilities and customized settings for monitoring the level of torsional vibrations.