Zobrazeno 1 - 10
of 12
pro vyhledávání: '"O. P. Marenych"'
Publikováno v:
Nauka ta progres transportu, Vol 68, Iss 2, Pp 81-91 (2017)
Purpose. The work is aimed at conducting the study to obtain the results that will quantify the influence of contactor contact pressure in power circuits of electric stock on the highest current value Id, that does not cause plastic deformation of co
Externí odkaz:
https://doaj.org/article/581af299fb9e42c9bfdb51e34e0fcbbc
Autor:
O. L. Marenych, O. O. Karzova
Publikováno v:
Nauka ta progres transportu, Iss 5(95), Pp 5-16 (2021)
Purpose. The main purpose of the work is to develop recommendations for increasing the power factor of electric drives of railway shunting winches, taking into account the peculiarities of the technological process at loading and unloading sites. To
Externí odkaz:
https://doaj.org/article/bbf19ce615d44500ae02eebe7bccfcab
Publikováno v:
Nauka ta progres transportu, Vol 65, Iss 5, Pp 54-63 (2016)
Purpose. To conduct research of electric motors in order to obtain the results that will assess the degree of energy saving due to electric loss reduction in the equipment with non-controlled electric drive. Methodology. The paper proposes an enginee
Externí odkaz:
https://doaj.org/article/ef14d582fb2c498f859419d748ff0a75
Publikováno v:
Nauka ta progres transportu, Vol 51, Iss 3, Pp 34-41 (2014)
Purpose. The article aims to study the problem of increase the reliability of auxiliary machines for AC electric trains during operation in real conditions. Methodology. The peculiarity of system construction of auxiliary machines for AC electric rol
Externí odkaz:
https://doaj.org/article/4e70e993fd5b4a0182a94139d2be82da
Autor:
M. O. Kostin, O. O. Marenych
Publikováno v:
Nauka ta progres transportu, Vol 36, Pp 75-78 (2010)
The probabilistic model of parametric reliability of power electromagnetic valve contactors of rolling stock which helps to evaluate the probability of failures in condition of switching a contactor (the tractive force during the whole process of ope
Externí odkaz:
https://doaj.org/article/f4bd02ca68924dd89f4706174c775fbb
Publikováno v:
Nauka ta progres transportu, Vol 20, Pp 49-53 (2008)
Issues of expediency of using the DC traction engines on multi-system electric railway rolling stock are considered in the paper.
Externí odkaz:
https://doaj.org/article/59263eacba614cc0afd017f675bfb72e
Autor:
O. L. Marenych
Publikováno v:
Nauka ta progres transportu, Vol 32, Pp 172-174 (2010)
The research to propose methods of determination of the load factor, at which it is advisable to switch off one of two parallel working power feeding transformers in order to reduce the losses of active energy in transformers, has been carried out.
Externí odkaz:
https://doaj.org/article/a5a0db79e4a94c49bbb9f2cd70697abb
Autor:
O. O. Marenych
Publikováno v:
Nauka ta progres transportu, Vol 26, Pp 60-62 (2009)
The question of increasing the reliability of electromagnetic contactors of the electric rolling stock is examined.
Externí odkaz:
https://doaj.org/article/eb4b7a6759e24783a0b4898230ac3acb
Autor:
V. M. Bezruchenko, O. L. Marenych
Publikováno v:
Nauka ta progres transportu, Vol 25, Pp 23-25 (2008)
In the article the method of static converters parameters calculation is resulted. It is proposed to replace the electromachine linear generator and balancing booster with static converters in the scheme of the traditional stand for test of locomotiv
Externí odkaz:
https://doaj.org/article/a37034387ae548a5a06ac9f8223594c5
Autor:
O. O. Marenych
Publikováno v:
Nauka ta progres transportu, Vol 21, Pp 69-71 (2008)
In this article the following problem has been considered: ways of efficiency increase for electric drives installed at the railway machinery repair enterprises taking into account the specific conditions of technological processes.
Externí odkaz:
https://doaj.org/article/cee15a949afe4b1bb30995354b07fdc5