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The paper illustrates the Reverse Engineering of a Pelton bucket geometry, who was scanned through Photogrammetry technique and processed with the following software packages: Agisoft Photoscan and Geomagic Design X; the solid geometry and the drawing of the bucket were generating using the SolidWorks software. The 3D geometry of the bucklet was compared with the bucket mesh generated in Geomagic Design X based on point cloud obtained in Agisoft Photoscan software. Ultimately, the reconstructed geometry were compared with measured points on the real bucket on CNC machine. [ABSTRACT FROM AUTHOR]

This article is dedicated to issues of commissioning of a small pumped storage hydropower plant in mine. Pumped storage hydropower plants are one of several ways to solve the problem of non-constant power consumption from the mains. This hydropower plant, we are going to deal with in this article, is located at Jeremenko mine in Ostrava, 580 meters below the surface of the earth. The entire facility is composed of Pelton turbine, Bibi's coupling and a generator of electrical energy. There will be described the issues during commissioning as well as methods of technical nondisaassembly diagnostics to eliminate these, mainly mechanical problems. One of the problems during initial commissioning of this hydropower plant was low bearing life of Pelton turbine. These bearings worked only 3 hours of operation than occurred their destruction. One of the causes of this very short life of bearings, among others, misalignment of bearing housing, which even used bearings could not compensate. The article should point out the mistakes which is possible to commit on the device from many causes. [ABSTRACT FROM AUTHOR]