INTRODUCING CUTSFORTH’S ROTOR FLUX MONITORING SYSTEM:
Variances in the magnetic flux within a generator indicates deterioration of winding insulation. Whether a result of thermal wear, large variation on load, contamination, or other causes, the impact to efficient generation is significant. Imbalances within the rotor damages insulation, which in turn degrades the generator’s output capacity and increases vibrations, further damaging the insulation, which ultimately leads to a forced outage.
TWO ANALYSES ARE PERFORMED:
- High speed flux signals identify shorted turns and severity
- Flux waveforms and generator loads are archived for historical trend analysis
USER DEFINED THRESHOLDS:
- 50 KHz Acquisition rate
- Filtering
- Detection Threshold
- Alarm Levels – Per Coil and Total Flux
- Easy Generator input parameters
AUTOMATIC CYCLE FINDING ELIMINATES NEED FOR KEY PHASER
CONNECTS TO MOST SCADA AND HISTORIANS VIA MODBUS TCP
- System reports Flux extrema and Zero Crossing
CREATES A GENERATOR LIBRARY
- Records waveforms when generator load changes by 1% or at user defined levels
- Critical for identification of worsening shorts indexed against time and load
- Manage the Maintenance Cycle through real-time measurements
- Zero crossing may be used as a proxy for load
ABILITY TO MONITOR UP TO TWO GENERATORS SIMULTANEOUSLY INTEGRATES WITH MOST COMMONLY INSTALLED FLUX PROBES
EASY TO INSTALL AND DOES NOT REQUIRE AN OUTAGE
Here is a brief diagram of the Cutsforth Flux Monitoring System. You will note the key difference: specifically, the capability to compare historical performance with current performance, then further indexed against load conditions. This key difference affords the power producer the capability to better manage maintenance events, including expensive rewinds, and minimize the risk of unplanned outages.
