Studying the Voltage Induced in a TwoWireRail Line

  • Yelena Yu. SEMENOVA
Keywords: contact electric system, longitudinal power supply, sinusoidal voltage, ferromagnetic transformer core, transformer core saturation induction, transient

Abstract

The processes arising during interaction between an AC contact system and two-wire-rail (TWR) lines are considered. The use of TWR lines in the longitudinal power supply system is stemming from two factors: the need to provide power supply for both railway and non-railway consumers situated along the railway or at a short distance from it, and achieving the maximum saving of financial resources for equipment and maintenance of the lines. The operation of a transformer connected to a TWR line is considered in detail. The losses in the transformer magnetic system and the transient occurring after the transformer magnetic core becomes saturated are studied. The theoretical curves of instantaneous voltage values on the elements of the considered electric circuits calculated from the formulas coincide with the obtained oscillograms of the same parameters recorded on a real transformer having the same electric circuit.

Author Biography

Yelena Yu. SEMENOVA

SEMENOVA Yelena Yu. (Russian University of Transport, Moscow, Russia) – Assоciate Professor of Electroenergetics Transport Dept., Cand. Sci. (Eng.)

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Published
2020-08-01
Section
Article