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This paper is an abridgement and update of numerous IEEE papers dealing with Squirrel Cage Induction Motor failure analysis. They are the result of a taxonomic study and research conducted by the author during a 40 year career in the motor industry. As the Petrochemical Industry is revolving to reliability based maintenance, increased attention should be given to preventing repeated failures. The...
In this paper the impact of different end region cooling arrangements on the endwinding heat transfer is analyzed. An experimental approach to the problem solving has been adopted: two ??ad hoc?? prototypes have been built, and a test bench has been assembled. Open drip proof ??ODP?? and total enclosed fan cooled ??TEFC?? frames have been taken into account. In addition the cooling effect of the fins...
Higher efficiency electric motors can lead to significant reductions in the energy consumption and also reduce the environmental impact. In order to promote a competitive motor market transformation, a new international standard, the IEC 60034-30 has been approved. This standard globally harmonizes motor energy-efficiency classes in general-purpose, line-fed, three-phase, squirrel-cage, induction...
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