rotor flux monitoring the power of innovation · 2018-10-09 · rotor flux monitoring variances in...
TRANSCRIPT
ROTOR FLUX MONITOR INGVariances in the magnetic flux within a generator indicates deterioration of winding insultation. 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.
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Straightforward User Interface displays all the actionable information required to effectively manage the flux conditions on a generator. Note the Alarm and the highlighted Slot Short, both in Slot Table and the Pole Graphs.
T H E P O W E R O F I N N O VAT I O N
Cutsforth.com/RotorFlux
Cutsforth.com/RotorFlux
| T W O A N A LY S E S A R E P E R F O R M E D : ■ High-speed flux signals identify shorted
turns and severity ■ Flux waveforms and generator loads
are archived for historical trend analysis
| U S E R D E F I N E D T H R E S H O L D S ■ 50 KHz Acquisition Rate
■ Filtering
■ Detection Threshold
■ Alarm Levels - Per Coil & Total Flux
■ Easy Generator input parameters
| A U T O M AT I C C Y C L E F I N D I N G E L I M I N AT E S N E E D F O R K E Y P H A S E R
| C O N N E C T S T O M O S T S C A D A A N D H I S T O R I A N S V I A M O D B U S T C P
■ System reports flux extrema and zero crossing | C R E AT E S A G E N E R AT O R L I B R A R Y
■ Records waveforms when generator load changes by 1% or at plant defined level
■ 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
| AB IL I TY TO MONITOR UP TO TWO GENERATORS S IMULTANEOUSLY
| INTEGRATES WITH MOST COMMONLY INSTALLED FLUX PROBES
I N T R O D U C I N G C U T S F O R T H ’ S R O T O R F L U X M O N I T O R I N G S Y S T E M :
Here is a brief diagram of the Cutsforth Rotor 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.
Results to
Modbus
Combine results and
waveforms for downstream
analytics
Configuration and Status
Fi lter ing
DATA COLLECTION CONTROLLER
Archive Reference L ibrayCompare Present
and Past Signatures
Locate Extrema Spatia l ly F i l terAverage pk-pk Ampl itude
for Thresholding
MODBUS PEAKS AND ALARMS
HOST APPLICATION ON SERVER FOR
DISPLAY AND ARCHIVE
OSI PI