Determination of criteria to find the quality of an electrical connection

Ignatenko, Ivan; Vlasenko, S. A.

doi:10.3103/s1068371216020085

Cited by 13 publications

(2 citation statements)

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“…Today, numerical methods are most widely used with the finite element method [20] to lead. Its advantage is the ability to consider various and complex properties of materials in calculations, the ability to reduce the problem to the system of linear or nonlinear algebraic equations directly, without pre-formulation of their differential analogues.…”

Section: Solutionmentioning

confidence: 99%

Assessment of the concrete part of the contact system supports in the field

Demina

Vlasenko

2020

E3S Web Conf.

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This article describes the issues of historical tour to the development of the supporting facilities fleet on the electrified railways of Russia; it considers the causal relationships of defect formation in reinforced concrete supports of the contact line. For the given operating conditions, a 3D model of the interior bracket-type reinforced concrete support was created in the SolidWorks software package. Using the SolidWorks Simulation module, the engineering review of the reinforced concrete support tension was made using the developed computation algorithm. 3D images of the support model were visualized from operating loads under design conditions and the values of the strain in the support height subject to the exposure to additional factors.

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Section: Solutionmentioning

confidence: 99%

Assessment of the concrete part of the contact system supports in the field

Demina

Vlasenko

2020

E3S Web Conf.

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“…The rail resistance is constant over the entire range of changes in the reverse traction current [9]; 2. Reverse traction current is distributed evenly between the rails [10]; 3. The complex potential "rail-to-ground" at any point of the traction rails is equal to the sum of the complex potentials from the currents flowing into the rails within the considered zone and depends only on the primary (first) harmonic of the currents [11].…”

Section: Introductionmentioning

confidence: 99%

Algorithm for calculating the rail-ground potential in heavy load conditions

et al. 2021

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Increased freight turnover on railway transport inevitably leads to increased traction current in DC and AC traction power supply systems. The increase in traction current is already causing problems related to the normal operation of the 25 kV AC traction power supply systems. One of the adverse consequences of the increased traction currents is the increased rail-to-ground potential. This has already caused a number of accidents and related traffic interruptions on the Far Eastern Railway of Russia and other railway sections powered with alternating current. The study considers the problem of increased rail-to-ground potentials and provides basic formulae for calculating the wave parameters of the rail network and rail-to-ground potentials. Various methods are given for calculating rail-to-ground potentials for a 25 kV AC traction power supply system. Since in an alternating current system, expressions for calculating the potential are functions of a complex variable, the calculation of such expressions requires the use of special programs. Adaptation of existing methods to modern software and computing systems allows you to optimize and significantly speed up the process of calculating the “rail-to-ground” potentials, either considering the use of certain potential-reducing measures or not. A calculation method includes an algorithm developed for calculating the rail-to-ground potentials in the 25 kV AC traction power supply system for an inter-substation zone of any length with any number of electric locomotives within the zone.

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Methodology for Assessing the Condition of the Contact Wire by the Value of Thermal Softening

Klimenko¹,

Li²

2020

VIII International Scientific Siberian Transport Forum

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Determination of criteria to find the quality of an electrical connection

Cited by 13 publications

References 0 publications

Assessment of the concrete part of the contact system supports in the field

Assessment of the concrete part of the contact system supports in the field

Algorithm for calculating the rail-ground potential in heavy load conditions

Methodology for Assessing the Condition of the Contact Wire by the Value of Thermal Softening

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