Motor and generator stator endwinding vibration can lead to machine failure if it is not caught at an early stage. Fiber optic accelerometers are required to measure and trend this endwinding vibration. Iris Power supplies endwinding accelerometers based on fiber optic technology. These sensors are permanently installed and are
used with the Iris Power EVTracIITM or the GuardIITM monitoring systems. Sensors can be of the single axis or the dual axis type. Dual axis sensors can simultaneously measure vibration in the radial and tangential directions. The kits are for use with air-cooled machines (see alternative flier for hydrogen cooled machines).
Each Kit includes EVA sensors with 10 m of fiber optic cable, generator frame feedthrough, 10 m of fiber optic extension cable used between the feedthrough and the junction box, a box containing electro-optical electronics plus an installation guide. Kits can include one additional single axis type EVA for installation on the core frame to quantify the effect of core vibration on the endwinding structure. A sensor install kit (with lashing materials and resins) is also included. For vibration monitoring at both ends of the stator, two separate kits should be purchased.
