2015 Publications

Stator winding thermal conductivity evaluation: An industrial production assessment

By Aldo Boglietti ; Enrico Carpaneto ; Marco Cossale ; Silvio Vaschetto ; Mircea Popescu ; Dave Staton

2015 IEEE Energy Conversion Congress and Exposition (ECCE)

Year: 2015 | Conference Paper | Publisher: IEEE

Abstract: The thermal conductivity between winding and lamination is one of the most critical parameters in electrical machine thermal analysis. Its value depends on the insulation materials and on the manufacturing process of the winding system and for this reason cannot be computed using analytical equations. In this paper a practical investigation on equivalent thermal conductivity of electrical machines stator winding is presented and discussed. The fully experimental approach is based on a fast transient thermal test to evaluate the winding equivalent thermal conductivity. The test campaign is carried out on two sets of Total Enclosed Fan Cooled “TEFC” industrial induction motors produced by two different manufacturers; the rated power of the devices under test ranges from 1.5 kW up to 55 kW.

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