Badania Drgań Czoła Uzwojenia Stojana
Drgania Czoła Uzwojenia Stojana spowodowane poluzowaniem uzwojeń oraz cyklami termicznymi mogą prowadzić do pęknięć przewodów miedzianych w uzwojeniach lub usterek, spowodowanych zużyciem izolacji. Rozwiązania Iris Power zapewniają informacje dotyczące lokalizacji i nasilenia drgań czoła uzwojenia, w celu podjęcia działań naprawczych.
Iris Power EVAII Sensor Kit - chłodzony wodorem
End-winding accelerometers for hydrogen- cooled generators based on fibre optic technology that can be used with the Iris Power EVTracII, the GuardII monitoring systems.
Features
- Single or dual axis sensing directions
- Single optical fiber for each sensing axis
- Flexible optical cables
- Dual axis sensor has low cross sensitivity increasing accuracy
- Safe in high voltage and high magnetic fields
- EVAII maximum continuous operation to 200C
- Low sensitivity to cable vibration
- Accelerometer reliability extensively evaluated using accelerated life testing at high temperature and high vibration levels
- Electro-Optical Drivers (EOD) are not part of the feedthrough and are not mounted on the generator frame, ensuring a longer life and easier maintenance
- Optical Fiber from sensor to Electro- Optical Driver ensuring no RF interference
- Electro-Optical Driver test point enables calibration with fine adjust buttons
- Any EVAII sensor can be paired with any EOD
- Calibrated using Back-to-Back comparison per ISO 16063-21
- Standard 100 mV/g electrical output compatible with any standard vibration monitoring instrument
- Multichannel feedthrough consists of 8 or 14 fiber connectors on each side of the penetration
- Embedded in a cured resin providing a unique self reinforcing seal
- Frame hole diameter required is 25.4 mm (1”)
- Hydrostatic pressure tested to 400 psi (2800 kPa)
Options
- 6 single axis sensors
- 7 single axis sensors (6 for the endwinding, one for the stator core)
- 13 single axis sensors (12 for the endwinding, one for the stator core)
- 6 dual axis sensors
- 6 dual axis sensors for the endwinding, plus one single axis sensor for the stator core
- 12 dual axis sensors for endwinding, plus one single axis sensor for the stator core
- EVA installation material included with all sensor kits
Iris Power EVTracII
The EVTracII technology provides continuous online stator end-winding vibration monitoring. Stator endwinding vibration is becoming an increasingly common cause of deterioration and failure in both generators and large speed motors.
Machines that are most at risk are those are those with mechanical resonances near twice the power supply frequency and/or at the rotor rotational frequency. Iris Power supplies sensors and monitoring systems which directly measure the level and trend in vibration from the stator endwindings. The key feature is that the accelerometers are of the fiber optic type, and thus are impervious to the high magnetic and electric fields in the stator endwinding.
Features
- Accepts signals from Iris Power EVA or any third party 100mV/g accelerometer.
- Monitors up to 12 single axis (EVA-S) or dual axis (EVA-D) sensors.
- One input available for a core vibration EVA-S which is used to gauge the effect of core/frame vibration on the endwinding.
- Provides relay contact to alert user of high vibration levels.
- Up to 2 years of storage for archiving daily vibration data and trending at user selectable intervals.
- Multiple communication ports: USB, Ethernet.
- Measurements can be downloaded, locally or remotely, to a computer with Iris Power Application Manager™ software.
- Optional Modbus over TCP/IP protocol available for built-in server and client capability, for collecting operating data relevant to the vibration signals and to provide displacement to third party software.
- User-friendly Windows™ based software for data display and analysis.
Capabilities
- Analysis of up to 12 dual axis endwinding and 1 single axis core sensor including high vibration alarms.
- Analyze tests and trend at different operating conditions for a more certain prediction of stator endwinding vibration conditions.
- Perform a spot measurement, or automatically acquire results over months and years during normal generator load changes, without user intervention.
- Combine endwinding vibration monitoring with Iris Power on-line partial discharge testing to provide a complete diagnostic for stator winding condition monitoring.
- Vibration vs frequency spectrum, vibration vs time waveform, overall vibration trend, specific frequency trend, operating parameter trend, historical statistics display.
Zestaw czujnik tęczówki zasilania EVAII - Kit -Air-cooled
End-winding accelerometers for air- cooled generators based on fibre optic technology that can be used with the Iris Power EVTracII, the GuardII monitoring systems.
Features
- Single or dual axis sensing directions
- Single optical fiber for each sensing axis
- Flexible optical cables
- Dual axis sensor has low cross sensitivity increasing accuracy
- Safe in high voltage and high magnetic fields
- EVAII maximum continuous operation to 200˚C
- Low sensitivity to cable vibration
- Accelerometer reliability extensively evaluated using accelerated life testing at high temperature and high vibration levels
- Electro-Optical Drivers are not mounted on the motor or generator frame, ensuring a longer life and easier maintenance
- Optical Fiber from sensor to Electro- Optical Driver ensuring no RF interference
- Electro-Optical Driver test point enables calibration with fine adjust buttons
- Any EVAII sensor can be paired with any EOD
- Calibrated using Back-to-Back comparison per ISO 16063-21
- Standard 100 mV/g electrical output compatible with any standard vibration monitoring instrument
Options
- 6 single axis sensors
- 7 single axis sensors (6 for the endwinding, one for the stator core)
- 13 single axis sensors (12 for the endwinding, one for the stator core)
- 6 dual axis sensors
- 6 dual axis sensors for the endwinding, plus one single axis sensor for the stator core
- 12 dual axis sensors for endwinding, plus one single axis sensor for the stator core
- EVA installation material included with all sensor kits
CoDis – Vibration Monitoring
Continuous Online monitoring system and diagnostic software for bearing and shaft vibrations on generators and motors.
The CoDiS system is a continuous online condition based monitoring system for vibration in generators and motors. Monitoring and diagnostic capabilities of shaft and bearing vibration are also evaluated electrical parameters and process parameters including temperatures, pressures and flow.
The system is based on open software architecture which enables flexible configuration of the system to facilitate customization and future upgrades.
