Electrodynamics of Power Losses in the Devices of Inter-Substation Zones of AC Electric Traction Systems

This article presents a new method for the estimation of active power losses based on “field” approach, i.e., theory electromagnetic field and propagation waves in dielectric medium. Electromagnetic are assumed to transmit energy from traction substation electric rolling stock through airspace inter-substation zone (i.e., not wires network) meet electrically conductive surfaces their way. The partially reflected penetrate them, thus creating thermal losses, determination which is main task this article. analytical expressions specific obtained by solving system Maxwell’s equations. Calculations catenary, rails, roofs, bottoms carriages locomotives performed. Power found be at least 7%. A comparative assessment magnitude total different types “circuit” approaches provided, has established that “conditional” correspond train carriages, locomotives.