The effect of brush spring pressure on the wear behaviour of copper-graphite brushes with electrical current

Yasar, I.; Canakci, AYKUT; Arslan, F.

doi:10.1016/j.triboint.2007.03.005

The effect of brush spring pressure on the wear behaviour of copper-graphite brushes with electrical current

Yasar I., Canakci A., Arslan F.

TRIBOLOGY INTERNATIONAL, vol.40, no.9, pp.1381-1386, 2007 (SCI-Expanded, Scopus)

Publication Type: Article / Article
Volume: 40 Issue: 9
Publication Date: 2007
Doi Number: 10.1016/j.triboint.2007.03.005
Journal Name: TRIBOLOGY INTERNATIONAL
Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Page Numbers: pp.1381-1386
Keywords: brush spring pressure, copper-graphite brushes, friction and wear, FRICTION, MECHANISM
Karadeniz Technical University Affiliated: Yes

Abstract

Electrical brushes are used to conduct current between stationary part and moving part of a motor or a generator. To ensure proper current transfer and continuous contact, brushes must be loaded against the sliding contact surface with a sufficient force. High loads increase frictional losses and wear of the brushes and/or sliding surface. While relatively low contact pressure causes arcing and higher voltage drop.