DocumentCode :
1678515
Title :
Using fiber-optic sensors to measure strain in motor stator end windings during operation
Author :
Gao, G. ; Steinhauser, M. ; Kavanaugh, R. ; Chen, W.
Author_Institution :
R&D Center, TECO-Westinghouse Motor Co., USA
fYear :
1999
fDate :
6/21/1905 12:00:00 AM
Firstpage :
645
Lastpage :
648
Abstract :
A novel technique incorporating fiber optic strain gages has been successfully used to measure the mechanical stresses on large motor stator winding end turns at different operating conditions. The testing was conducted both on high voltage, large horsepower and medium voltage, medium horsepower motors with form wound coils. The goals for this project were to: (1) accurately measure the mechanical stress on the winding end turns and to determine the reliability of bracing system designs with consideration for reduced insulation allowances, and (2) compare the test data with theoretical calculated values obtained from FEA models. In this paper, the new test method is described and certain test results are discussed
Keywords :
coils; electric motors; fibre optic sensors; finite element analysis; machine testing; stators; strain measurement; stress measurement; FEA models; bracing system designs; fiber-optic sensors; finite element models; form wound coils; mechanical stress measurement; mechanical stresses; medium horsepower motors; medium voltage; motor stator end windings; motor stator winding end turns; operating conditions; reduced insulation allowances; reliability; strain measurement; winding end turns; Capacitive sensors; Mechanical sensors; Mechanical variables measurement; Optical fiber sensors; Optical fiber testing; Optical fibers; Stator windings; Strain measurement; Stress measurement; Voltage;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Electrical Insulation Conference and Electrical Manufacturing & Coil Winding Conference, 1999. Proceedings
Conference_Location :
Cincinnati, OH
ISSN :
0362-2479
Print_ISBN :
0-7803-5757-4
Type :
conf
DOI :
10.1109/EEIC.1999.826286
Filename :
826286
Link To Document :
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