The brush wear in small rating, high speed, universal motors is analysed, developing a model for its estimation, as a function of the operating and constructive quantities. Particular attention is devoted to the effect of the turns distribution in the armature slots: to this aim, two universal motors are considered, with the same constructive quantities, except for the number of turns of the two coil sections per layer-slot; in the former motor this number is the same, in the latter different, maintaining nevertheless the same sum. Using a suited equivalent network to study the commutation, the significant figures of merit are found out, giving an explanation of the different wear in the two cases
Titolo: | Brush Wear Modelling in High Speed Universal Motors |
Autori: | |
Data di pubblicazione: | 2004 |
Abstract: | The brush wear in small rating, high speed, universal motors is analysed, developing a model for its estimation, as a function of the operating and constructive quantities. Particular attention is devoted to the effect of the turns distribution in the armature slots: to this aim, two universal motors are considered, with the same constructive quantities, except for the number of turns of the two coil sections per layer-slot; in the former motor this number is the same, in the latter different, maintaining nevertheless the same sum. Using a suited equivalent network to study the commutation, the significant figures of merit are found out, giving an explanation of the different wear in the two cases |
Handle: | http://hdl.handle.net/11311/261960 |
ISBN: | 8889389001 |
Appare nelle tipologie: | 04.1 Contributo in Atti di convegno |
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