Work

Experimental Study on the Coupled Influences of Contact Wire Profiles and Ambient Humidity on the Contact Strip Wear Mechanism

Year: 2025

Type: article

Abstract: The coupled effects of the contact wire (CW) working surface profile and ambient humidity on the contact strip (CS) wear were investigated using a high-speed current-carrying friction and wear test rig. The experimental results revealed that the CW’s working surface profile determined the CS wear law of different friction pairs under high ambient humidity. Under low ambient humidity, when the current was less than or equal to 200 A, the ambient humidity determined the CS wear law; after the current exceeded 200 A, the change in the CW working surface profile became the decisive factor. Interestingly, when the current surpassed 300 A, the CW working surface profile significantly influenced the CS wear law.

Source: Crystals

DOI: 10.3390/cryst16010007