Assessment of the extension of functional diagnostics zoines of relay protection of 25 kV traction network
https://doi.org/10.46973/0201-727X_2025_1_151
Abstract
In modern conditions of operation of the traction network, there is a need for reliable protection against short circuits. An effective solution to this problem was the introduction of microprocessor relay protections, which are integrated into programmable logic controllers. These devices have a high degree of automation and are able to quickly respond to changes in the electrical network, which significantly increases the level of safety. However, despite the high degree of reliability of such systems, there are a number of questions regarding their functionality. The article considers the possibility and expediency of functional diagnostics of relay protection by increasing the number of measuring units included in the protection system. The criteria for assessing the effectiveness of the proposed method are the probability of detecting a failure to operate a measuring unit before the moment when it should perform its functions and the probability of detecting a false (excessive) operation. The first criterion helps to assess changes in the hardware and software reliability of the protection system when implementing functional control. The second is necessary to assess the effectiveness of control from the point of view of changing the functional reliability of protection, as well as the logical and information compatibility of protection with other automation functions.
About the Author
O. V. Kubkina
Rostov State Transport University (RSTU)
Russian Federation
Russian Federation
Kubkina Olga Vladimirovna, Chair “Electrical Power Engineering and Electromechanics of Transport”, Candidate of Engineering Sciences, Associated Professor
References
1. Tipikina, A. P. Evaluation of software reliability of microprocessor relay protection / A. P. Tipikina, L. S. Pevtsova // Internet journal "Naukovedenije". – 2015. – Vol. 7, No. 2. – DOI 10.15862/74TVN215.
2. Analysis of the reliability of power supply of transport systems depending on the state of relay protection and automation devices / A. A. Lundalin, E. Yu. Puzina, I. A. Khudonogov, V. V. Kashkovsky // Modern technologies. System analysis. Modeling. – 2019. – No. 3 (63). – P. 127–135. – DOI 10.26731/1813-9108.2019.3(63).127-135.
3. Integrated solution of applied technological problems of traction power supply automation / Yu. I. Zharkov, O. V. Kubkina, V. G. Lysenko, N. A. Popova // Vestnik Rostovskogo Gosudarstvennogo Universiteta Putey Soobshcheniya. – 2021. – No. 1 (81). – P. 130–165. – DOI 10.46973/0201-727X_2021_1_130.
4. Lysenko, V. G. Algorithm for automatic reconnection of AC traction network / V. G. Lysenko, O. V. Kubkina // Proceedings of the International Scientific and Practical Conference "Transport2014". Part 2. Technical sciences. – Rostov-onDon : RSTU, 2014. – P. 287–289. – ISBN 978-5- 88814-360-5.
5. Lysenko, V. G. Determination of the boundaries of a traction network section with a stable short circuit / V. G. Lysenko, O. V. Kubkina, N. A. Popova // Vestnik Rostovskogo Gosudarstvennogo Universiteta Putey Soobshcheniya. – 2020. – No. 1 (77). – P. 145–152. – ISSN 0201-727X.
6. Lysenko, V. G. Automatic control of the correct functioning of the relay protection of the traction network / V. G. Lysenko, O. V. Kubkina, M. V. Kirpinskaya // Vestnik Rostovskogo Gosudarstvennogo Universiteta Putey Soobshcheniya. – 2013. – No. 3. – P. 142–146. – ISSN 0201-727X.
7. Zharkov, Yu. I. Automation of diagnostics of relay protection systems and automation of electrical installations / Yu. I. Zharkov, V. G. Lysenko, E. A. Storozhenko. – Moscow : Marshrut, 2005. – 178 p. – ISBN 5-89035-253-9.
8. Lysenko, V. G. Evaluation of the efficiency of monitoring the correct functioning of relay protection devices / V. G. Lysenko, O. V. Kubkina // Transport : science, education, production : collection of scientific papers. – Rostov-on-Don : RSTU, 2016. – P. 287–289. – ISBN 978-5-88814-446-6.
9. Standard of JSC “Russian Railways”. Protection of railway power supply systems from short circuits and overload. Part 4. Methodology for selecting protection settings in an AC traction power supply system. STO RZD 07.021.4–2015 : approved by the Order of JSC “Russian Railways” dated 07.04.2016 No. 615r.
10. Domansky, V. V. Information technologies of operating modes of traction power supply and their supply systems / V. V. Domansky, G. A. Domanskaya, V. A. Vasenko // Vestnik Rostovskogo Gosudarstvennogo Universiteta Putey Soobshcheniya. – 2020. – No. 3 (79). – ISSN 0201-727X.
Review
For citations:
Kubkina O.V. Assessment of the extension of functional diagnostics zoines of relay protection of 25 kV traction network. Vestnik Rostovskogo Gosudarstvennogo Universiteta Putej Soobshcheniya. 2025;(1):151-158. (In Russ.) https://doi.org/10.46973/0201-727X_2025_1_151
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