The paper analyses the brush wear in two small rating universal motors, with the same constructive quantities, except the number of turns of the two coil sections per layer-slot; in the former motor, the number of turns is the same, in the latter different, maintaining nevertheless the same sum. Using a particular equivalent circuit to study the commutation, the significant quantities influencing the brush wear are found, explaining the reasons of the different wear in the two cases. Then, a quantitative evaluation of the brush wear is carried out.

Model to Evaluate the Influence of the Winding Data on the Brush Wear in Universal Motors

DI GERLANDO, ANTONINO;PERINI, ROBERTO
2006-01-01

Abstract

The paper analyses the brush wear in two small rating universal motors, with the same constructive quantities, except the number of turns of the two coil sections per layer-slot; in the former motor, the number of turns is the same, in the latter different, maintaining nevertheless the same sum. Using a particular equivalent circuit to study the commutation, the significant quantities influencing the brush wear are found, explaining the reasons of the different wear in the two cases. Then, a quantitative evaluation of the brush wear is carried out.
Int. Conference on Electrical Machines - ICEM - 06
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11311/242225
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