This whitepaper is a general discussion regarding the use of a Laser Tracker to build and assemble hydro units on-site. It presents the benefits and sometimes limitations of using a laser tracker. It also provides details about the hydro applications where they can be used. Examples are given from a few projects where Voith Hydro was building new turbine and generator units as well as a project with runner replacement and machining of the embedded turbine parts.
The approach used for these projects was to own and keep a laser tracker on-site for the duration of the project so that it could be used anytime, as needed. The benefits have been assessed by comparing the laser tracker measurements with alternative conventional methods as far as ROI, time savings and quality of data and information derived from the system.