Decrease in the damage of powerful turbogenerator stator caused by vibration in the end zones (analysis, hypotheses, experiment)
DOI:
https://doi.org/10.20998/2074-272X.2014.1.07Keywords:
turbogenerator, tightening prisms, the teeth, axial forces, monitoring and diagnosticsAbstract
The analysis of the turbogenerators’ TВВ-1000-2Y3 failure has shown that the most vulnerable link in the stator is such of their elements as tightening prisms, the teeth of the end packet core, lead-out and connecting buses of the stator winding. The basic reason for the destruction of the elements mentioned is metal fatigue caused by excessive vibration under the influence of variable axial forces of electromagnetic origin. Preventing the destruction of the structural elements may be achieved by vibration monitoring and diagnostics.
References
Shumilov Yu.A., Demidjuk B.M., Shtogrin A.V. Vibrodiagnostika kak sostavljajushhaja chast' monitoringa tehnicheskogo sostojanija silovyh agregatov jelektrostancij. Pratsi IED NAS Ukraine, 2008, no.1, pp. 76-80.
Results of experimental research on THUkr nuclear power station power plant № 3 turbogenerator TVV-1000-2U3 vibrations Electrical engineering & electromechanics, 2008, no.5, pp. 32-36.
Vas’kovsky Y.N., Shumilov Yu.A., Shtogrin A.V. Simulation of the tooths fatigue destruction process in the end packets of powerful turbogenerator stator core. Bulletin of NTU "KhPІ", 2009, no.41, pp. 22-27.
Vas’kovsky Y.N., Shumilov Yu.A., Shtogrin A.V. Analysis of vibration-exciting axial forces in a powerful turbogenerator stator core. Electrical engineering & electromechanics, 2009, no.2, pp. 21-26.
Shumilov Yu.A., Vas’kovsky Y.N., Chumak V.V., Shtogrin A.V. Vibrodiagnostika i monitoring turbogeneratorov atomnyh jelektrostancij. Gidrojenergetika Ukrainy, 2009, no.1, pp. 28-31.
Shumilov Yu.A., Vas’kovsky Y.N., Shtogrin A.V. Vibrovozmushhajushhie osevye sily i mehanika razrushenija jelementov konstrukcii statora moshhnogo turbogeneratora. Materialy mezhdunarodnoj nauchno-tehnicheskoj konferencii. Sevastopol', 2009, pp. 77-78.
Shumilov Yu.A., Vas’kovsky Y.N., Shtogrin A.V. Sistemnyj monitoring i diagnostika turboagregatov na AES. Materialy mezhdunarodnoj nauchno-tehnicheskoj konferencii. Sevastopol', 2010, pp. 5-7.
Gaydenko Y.A., Vishnevskiy T.S., Shtogrin A.V. 3D-modeling for determination of axial forces acting in elements of the end zone of power turbogenerators. Electrical engineering & electromechanics, 2013, no.6, pp. 73-78.
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Copyright (c) 2015 Yu. A. Shumilov, A. V. Shtogrin
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