Mini Case Study: Hydro-Electric Dam
Project: Measure head cover for turbine
Location: Hydro-Electric Dam – Bridgeport, WA
A hydro-electric dam required the head cover of the rotor assembly measured. The head cover had been removed and supported on cribbing. The measurement involved the laser tracker taking readings from the top, bottom and 3 different sides to cover the entire scope of work dictated by the site record sheets. Careful planning for the different positions for the laser tracker was needed. The head cover was over 20ft diameter with 24 hole positions, many different large internal and external bores with readings taken at various angles and flatness plane measurements at different elevations.
With the use of multiple control points (monuments) located around the periphery of the head cover the laser tracker was able to measure over 365 points and features. The total inspection was achieved in 2 days.
The Faro software was able to generate the report into an excel spreadsheet and from there provide the information for the detailed site record sheets for the engineers to review.
The Faro laser tracker was also used to measure the bottom ring which is located inside the stator / shaft area. The laser tracker was mounted above the bottom ring horizontally so that the measuring envelope was at its full potential. The Faro horizontal attachment was used to provide a safe counterbalance for the laser tracker as it had to hang out in space. The computer was located at the bottom ring and all the readings were taken "wireless".
Morley Machine Tool Alignment Inc.
in Milton Washington specializes in this type of work. We
are conveniently located between Seattle and Tacoma Washington. Contact Us For A Quote Today
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