Synopsis of Harry S. Truman Turbine Repairby Donald J. Juett, US Army Corps of Engineers, Kansas, City, MO, USA,
Hadley E. Wolfrum, US Army Corps of Engineers, Kansas, City, MO, USA,
Document Type: Proceeding Paper
Part of: Water Power '87
The Harry S. Truman Powerplant was designed and constructed under the supervision of the U. S. Army Corps of Engineers and is located on the Osage River near Warsaw, Missouri. During 1981 and 1982 the six, identical 26. 7 MW slant-axis Kaplan units were brought on-line. In December 1985, two of the units experienced similar blade control failures on the same day. An engineering analysis and design investigation is presently underway to determine the cause of the failures and to recommend corrective action to prevent future failures. The unique configuration of the units required that innovative disassembly techniques and procedures be devised. The slant-axis design of the units causes cyclic bending stresses in the shaft and runner hub. This is one of the major items to be considered during the failure investigation. This paper describes the failures which occurred, the method of disassembly, the tests and studies conducted, and the repairs and modifications recommended. The information developed from these studies should be of interest to all organizations that design or operate inclined-axis hydro-turbine units.
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