Authors:
Vasiliy Kuryanov, PhD, Associate Professor of Electro Power and Electrical Engineering at the branch of MPEI National Research University in Volzhskiy, Russia
Makhud Sultanov, PhD, Associate Professor of Heat and Power Engineering and the director of the branch of MPEI National Research University in Volzhskiy, Russia
Victor Fokin, Director, Energoservice LLS

An indicator of the efficiency of electrical energy use is the level of losses recorded during transportation and use. Increasing the
efficiency of this process therefore is a major task for today’s society and business, including the railway industry. The primary components and methods of transporting electricity in an over-head contact line system for railways are shown in Figure 1.
The messenger or catenary is no less of an important element of the overhead catenary system than the contact wire, both from the
point of view of reliability, and from the point of view of energy efficiency.

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