Page 3 - EVTracII Brochure

IRIS POWER EVTracII

The purpose of endwinding FEATURES
vibration monitoring is to directly • Accepts signals from Iris Power EVAII or any third party 100mV/g
measure if the stator endwindings accelerometer.
are vibrating excessively during
normal operation, so that any • Monitors up to 12 dual axis or 1 single axis sensors.
incipient vibration can be detected • One input available for a single axis core vibration which is used to
(and corrected) at an early gauge the effect of core/frame vibration on the endwinding.
stage, well before failure. The • Provides relay contact to alert user of high vibration levels.
monitoring system consists of four
components: • Up to 2 years of storage for archiving daily vibration data and trending
at user selectable intervals.
• endwinding vibration
accelerometers mounted • Multiple communication ports: USB, Ethernet.
at critical locations in the • Measurements can be downloaded, locally or remotely, to a computer
endwinding, with Iris Power Application Manager™ software.
• fiber optic cable to connect the • Optional Modbus over TCP/IP protocol available for built-in server and
sensors outside of the motor or client capability, for collecting operating data relevant to the vibration
generator frame, signals and to provide displacement to third party software.

• electro-optical unit to convert • User-friendly Windows™ based software for data display and analysis.
the optical signals to millivolts
which are proportional to the CAPABILITIES
acceleration, • Analysis of up to 12 dual axis endwinding and 1 single axis core sensor
• EVTracII monitor to digitize, including high vibration alarms.
process and store the vibration • Analyze tests and trend at different operating conditions for a more
data, certain prediction of stator endwinding vibration conditions.
• In addition a penetration is • Perform a spot measurement, or automatically acquire results over
needed to bring the fiber optic months and years during normal generator load changes, without user
cables outside of the generator intervention.
frame for hydrogen-cooled • Combine endwinding vibration monitoring with Iris Power on-line partial
machines. 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.

H2 Cooled Machine Penetration
& Junction Box

Electro-Optical EVTracII
10m fiber bundle 10m fiber extension
Converter Box

OR
2m shielded
twisted pair
10m fiber extension
cable
10m fiber bundle

Air Cooled Machine Junction Box

IRIS POWER ON-LINE PRODUCTS