Experimental study on the temperature of the contact strip in sliding electric contact

Author:

Chen GX1,Hu Y1,Dong BJ1,Yang HJ2,Gao GQ3,Wu GN3,Zhang WH1,Zhou ZR1

Affiliation:

1. State Key Laboratory of Traction Power, Southwest Jiaotong University, Chengdu, China

2. College of Nuclear Technology and Automation Engineering, Chengdu University of Technology, Chengdu, China

3. School of Electrical Engineering, Southwest Jiaotong University, Chengdu, China

Abstract

Using a ring-on-block tester with AC, the authors accomplished several experimental tests on the temperature of the contact wire and strip in sliding electric contact. In the test, the temperature of the samples, arc voltage, electric current, and wear volume of the strip were collected. Influences of the normal force, sliding speed, and electric current on the temperature of the contact wire and strip were studied. Test results show that the temperature of the carbon strip increases with the increasing of sliding speed and electric current or the decreasing of normal force. The strip wear rate is linearly related with the temperature of the strip. Moreover, the factors affecting the strip temperature were also discussed.

Publisher

SAGE Publications

Subject

Surfaces, Coatings and Films,Surfaces and Interfaces,Mechanical Engineering

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