NOVOSIBIRSK STATE TECHNICAL UNIVERSITY Contact Wire Reducing Wear

graduate student,
Faculty of mechatronics and automation, electrotechical units department,
Roman Vagaytsev. Research

adviser : Cand.Eng.Sc.Associate Prof.
, electrotechical units department, Birykov V.V.

Novosibirsk 2016

the life time of contact wire and for reducing the

contact loss of pantographs of passing high speed trains;
2. Conduct the experiments.

Objectives:

wear experiment facility

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Wear experiment facility and conditions of the experiments

wear experiment facility
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Table 1. Features of wear experiment facility

Experiment conditions

(a) Cu

(b) Cu-Sn (c) Cu-Cr-Zr
Figure 3. Changes of friction coefficient with time

lubrication, it seems that there is a possibility that the

powder cut from contact wire is mixed into the grease. It can be considered that this would contribute to electric conduction and make contact resistance smaller.
It seems effective to mix conductive substances into the grease for boundary lubrication. However, the influence on contact wire and contact strip by the pantographs which pass at high speed needs to be checked.
If the wear of contact wires of stations at the points where pantographs stop can be decreased, speed of passing trains especially at stations without through tracks can be raised. This promotes convenience for customers.

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Conclusion