Repair • Retrofit • Design • Align

Technical Papers

Akosombo GS – 1020 MW PTFE Thrust Bearing Solution

After installing high-performance turbine runners during a major overhaul, Akosombo GS had experienced increased thrust bearing operating temperatures and cavitation …

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Dolgeville rapids

Case Study of an S-Turbine Seal Failure

Hydro Tech was called to the Dolgeville Generating Station in January 2018 to review the history of seal failures that …

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PTFE Thrust Bearing Retrofit

A single unit station had experienced recurrent thrust bearing failures. The unit is a 9000 HP, Kaplan-type runner that started …

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SKQ (Kerr) GS PTFE Thrust Bearing Replacement

After a 90 MW generator’s thrust bearing failed it was determined the best path forward was to install PTFE lined …

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