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Conference paper
Detection of Partially Fallen-Out Magnetic Slot Wedges in Inverter Fed AC Machines Under Various Load Conditions
Goran Stojčić, Mario Vašak, Nedjeljko Perić, Gojko Joksimović, Thomas Wolbank
IEEE Energy Conversion Congress & Exposition, Raleigh, North Carolina, pp.6, 2012
ABSTRACT:
Electrical machines in the high voltage class are usually designed with open stator slots. This wide open slots cause an increase of higher order harmonics, vibrations, noise and temperature, thus the machines efficiency is decreased. To counteract this disadvantage magnetic slot wedges are applied. Due to the impact of high magnetic and mechanical forces these wedges can fall out and may cause further serious damages. Up to now reliable detection methods for single missing slot wedges are coupled with a disassembling of parts of the machine. In this paper an method is investigated which provides the possibility of detection, based on the measurement of electrical terminal quantities only.
BibTeX entry:
@inproceedings \{Stojcic2012_509,
author = \{Stoj\v{c}i\'{c}, G. AND Va\v{s}ak, M. AND Peri\'{c}, N. AND Joksimovi\'{c}, G. AND Wolbank, T.},
title = \{Detection of Partially Fallen-Out Magnetic Slot Wedges in Inverter Fed AC Machines Under Various Load Conditions},
booktitle = {IEEE Energy Conversion Congress & Exposition, Raleigh, North Carolina},
pages = \{6},
year = \{2012}
}

 

 

 

 

 

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