Hydroelectric turbines: measuring air gaps in the field

The Measuring Division of Kaman Precision Products announces its new Air Gap Tool. Offering simple, accurate measuring and data storage for hydroelectric turbines and more, the Air Gap Tool is designed specifically for static alignment of rotor/stator in large-scale hydro generators. It is a suitable tool for measuring air gaps in the field and can be used for initial installation and during re-assembly after maintenance procedures. 

The new Air Gap Tool from Kaman can measure and store data with the tap of a finger – no power cords, no pens, no paper. The tool can be easily positioned at predetermined locations between the stator core and rotor poles. Air gap distance is accurately measured and transmitted wirelessly to handheld Android or iPhone devices using the included app and stored on command. The Air Gap Tool makes gap measurement quick and easy.

Using proven, robust Kaman eddy current sensing technology, the new Air Gap Tool offers effortless setup and operation, with a full-featured app that provides a user-friendly graphic user interface. The tool provides both horizontal and vertical measurements. Users can set limits for intuitive visual feedback while working.

The Air Gap Tool is fully configurable and is available in optimised depths for a variety of specific applications. The tool was designed with a focus on providing usable data, with real-time visibility of data points, as well as maximum, minimum, and average readings.

With its cordless fully wireless operation, the Air Gap Tool features unencumbered mobility, using a USB rechargeable battery with a battery life of greater than four hours.