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Journal articles on the topic 'Microprocessor relay protection devices'

Author: Grafiati

Published: 28 May 2022

Last updated: 30 July 2025

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1

Radimov, Sergiy M., and Valerii P. Plis. "Relay protection devices functionality comparative analysis." Herald of Advanced Information Technology 6, no. 3 (2023): 227–39. http://dx.doi.org/10.15276/hait.06.2023.15.

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With the development of technology, there has been an evolution in the electrical power industry, replacing conventional electromechanical relays with more advanced devices. Multifunctional microprocessor relay protection terminals becamesuch innovations.This transition marked a new era in the field of monitoring and control of electrical systems. One of the strategic tasks of the energy sector is the comprehensive technical re-equipment and reconstruction of relay protection and automation systems with a focus on maximum automation of dispatch control operations.Solving this problem is imposs

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2

A., HADAI. "Overview of calculation verification methods of current transformers which work in relay protection circuits." Journal of Electrical and power engineering 27, no. 2 (2022): 25–34. http://dx.doi.org/10.31474/2074-2630-2022-2-25-34.

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Systematized existing methods of calculation verification of current transformers that work in the circuits of modern relay protection devices. The requirements of the Ukrainian rules for the arrangement of electrical installations differ from the requirements of the standard of the International Electrotechnical Commission IES 61869-2. The difference concerns the absence of contact vibration and not exceeding the maximum allowable current error of 50% in the case of an internal short circuit is a separate case of the requirements for electromechanical protections and these requirements cannot

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A.V. Neftisov, A.Zh Sarinova, O.M Talipov, L. N Kirichenko, and I. M. Kazambaev. "POSSIBILITY OF BUILDING MICROPROCESSOR RELAY PROTECTION DEVICES ON OPEN ARCHITECTURE." Bulletin of Toraighyrov University. Energetics series, no. 3.2022 (September 30, 2022): 277–92. http://dx.doi.org/10.48081/iklz1109.

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"The article analyzes the structure of relay protection devices of various designs. Based on the Unified Electric Power System of the Republic of Kazakhstan prediction on the electric energy balance the plan to increase the generation of electricity due to the commissioning of new capacities was revealed In addition, the international market of the energy sector and a preliminary forecast for the total demand for energy separeted into the declared scenarios and the scenario of sustainable development of electricity generation, cumulative average annual growth rate, electric capacity by countri

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Neftisov, A., O. Talipov, and O. Andreeva. "DEVICE FOR DETERMINING THE VALUE OF THE STEADY-STATE ELECTRICITY IN THE PRIMARY CIRCUIT USING A REED SWITCH AND A MICROPROCESSOR." Scientific Journal of Astana IT University, no. 6 (June 30, 2021): 52–58. http://dx.doi.org/10.37943/aitu.2021.75.95.005.

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This article discusses an innovative device designed to determine the value of the steady-state current in the primary circuit of electrical installations using reed switches and a microprocessor without the use of current transformers. The typical structure of relay protection devices is considered. The main elements are presented. When choosing a primary converter, a reed switch was taken, because it has certain advantages over current transformers. As part of the research, experimental installations for measurements were assembled. They made it possible to emulate the real conditions in whi

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Guseva, A. I. "MODERN MICROPROCESSOR PROTECTION OF POWER TRANSFORMERS." Chronos 6, no. 10(60) (2021): 9–12. http://dx.doi.org/10.52013/2658-7556-60-10-2.

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The purpose of the present study was to understand what advantages and disadvantages in the operation of microprocessor devices in the RZA, to analyze the main series of microprocessor protection, their advantages, disadvantages and features, to review microprocessor protection in the labor market. Based on this, conclude the relevance and acceptability of microprocessor protection in general. The study examined several companies that are engaged in microprocessor protection. Comparing microcontrollers is challenging. Usually, each crystal manufacturer offers its own tests, developed personall

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Вальянов, Данила, Артём Науменко та А. Дружинина. "МОДЕРНИЗАЦИЯ УСТРОЙСТВ РЕЛЕЙНОЙ ЗАЩИТЫ НА КРАСНОЯРСКОЙ ЖЕЛЕЗНОЙ ДОРОГЕ". Modern engineering and innovative technologies, № 20-02 (30 квітня 2022): 13–16. http://dx.doi.org/10.30890/2567-5273.2022-20-02-029.

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The article discusses the feasibility of a comprehensive replacement of relay protection devices with microprocessor terminals using the example of the Krasnoyarsk Railway. Two stages of modernization of relay protection devices are proposed. The main adv

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Marković, Nenad, Uroš Jakšić, Vladimir Rilak, and Strahinja Marković. "Protection of HV and MV lines in electric power distribution Kruševac with special emphasis on microprocessor relay protection." Bakar 49, no. 1 (2024): 41–58. http://dx.doi.org/10.5937/bakar2401041m.

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The aim of the paper is to present the method of implementing and using relay protection with a special emphasis on microprocessor relay protection in Electric power distribution Kruševac, and based on the presented concrete examples of settings and operation of protective devices that were collected from practice and paper in the field. The software packages Test Universe were used in the paper for testing protection in TS "Kruševac 1" on the 1158B transmission line in the direction of "Kruševac 4" on the 110 kV network, as wel as Test Universe software package for testing protection in TS "K

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Shilin, A. N., A. A. Shilin, P. V. Dikarev, and O. O. Ahmedova. "INTELLIGENT RELAY PROTECTION." Kontrol'. Diagnostika, no. 259 (2020): 30–37. http://dx.doi.org/10.14489/td.2020.01.pp.030-037.

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Currently, with the introduction of electrical smart grids, one of the main problems is increasing the authenticity of turning on the relay protection devices during emergency modes. This is due to the fact that the short circuit current, and therefore setpoint, is affected by large number of external factors, such as the humidity of the earth and the atmosphere, external environment temperature, soil state, terrain, etc. Therefore, the relay protection devices must to take account of the influence of these factors and to introduce automatic correction for the setpoint current, i.e. the device

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9

Neftissov, Alexandr, Assiya Sarinova, Ilyas Kazambayev, Lalita Kirichenko, Oleksandr Kuchanskyi, and Adil Faizullin. "Determination of the speed of a microprocessor relay protection device of open architecture with a reed switch and the industrial internet of things." Eastern-European Journal of Enterprise Technologies 2, no. 5 (122) (2023): 20–30. http://dx.doi.org/10.15587/1729-4061.2023.276588.

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The paper presents the development of a microprocessor-based relay protection device on open architecture. Currently, there is a problem with modern microprocessor relay protection: the impossibility to replace the damaged element with alternatives from other manufacturers. The solution to this problem is the use of devices with open architecture. The study developed a structural model of a microprocessor-based relay protection device based on an open architecture with the industrial Internet of things application. Open architecture is achieved through open protocols and the principle of modul

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10

Alexandr, Neftissov, Sarinova Assiya, Kazambayev Ilyas, Kirichenko Lalita, Kuchanskyi Oleksandr, and Faizullin Adil. "Determination of the speed of a microprocessor relay protection device of open architecture with a reed switch and the industrial internet of things." Eastern-European Journal of Enterprise Technologies 2, no. 5(122) (2023): 20–30. https://doi.org/10.15587/1729-4061.2023.276588.

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The paper presents the development of a microprocessor-based relay protection device on open architecture. Currently, there is a problem with modern microprocessor relay protection: the impossibility to replace the damaged element with alternatives from other manufacturers. The solution to this problem is the use of devices with open architecture. The study developed a structural model of a microprocessor-based relay protection device based on an open architecture with the industrial Internet of things application. Open architecture is achieved through open protocols and the principle of modul

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11

He, Hong Hua. "Simulation Design of Transformer Differential Protection Based on Mat Lab." Advanced Materials Research 722 (July 2013): 282–86. http://dx.doi.org/10.4028/www.scientific.net/amr.722.282.

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The microprocessor-relay protection device has gradually replaced regular simulation relay protection it is also difficult to visually determine protection device malfunction or tripping. Therefore, the use of the Mat lab toolbox to build transformer differential protection simulation model, the simulation results show that two-line ratio brake can correctly identify internal fault current, and rapidly remove fault, and the system also can provide convenient for microprocessor transformer protection.

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Vinogradov, A. V., A. A. Lansberg, Yu D. Volchkov, and A. V. Vinogradova. "Determination of modern reliability indicators of relay protection and automation devices." Power engineering: research, equipment, technology 25, no. 2 (2023): 58–70. http://dx.doi.org/10.30724/1998-9903-2023-25-2-58-70.

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RELEVANCE. The reliability of power supply to consumers depends on the reliability of all elements of the power supply system, including relay protection and automation devices (RZiA). Knowing the current values of the reliability indicators of various devices makes it possible to take them into account when designing RPA, choosing more reliable devices, identifying shortcomings in RPA and performing work to eliminate them. THE PURPOSE. Due to the lack of open data on the current values of reliability indicators of relay protection and automation devices (RPA) of electric networks of 10-110 kV

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Patil, Anusuya, Adarsha J, Pradeep Kumar, Praveen Kumar B. Ronada, and Mahabasha P. "Motor Protection Scheme." International Journal for Research in Applied Science and Engineering Technology 11, no. 4 (2023): 4085–86. http://dx.doi.org/10.22214/ijraset.2023.51194.

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Abstract: Motor is a device which converts electrical energy into mechanical energy. Motor protection is also essential. To protect the motor we are using the microprocessor based motor protection relay against various faults. Induction motors are widely used in industry because of their rigidity and speed-control flexibility. Therefore, the problem of induction motor protection attracted many researchers. The digital protection techniques that are used in digital relays provide better performance and higher accuracy than the conventional electromagnetic and solid-state relays.

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Uakhitova, Aigul, Gulmira Yerbolkyzy, and Galina Tatkeyeva. "Development of a fuzzy logic-based model for assessing the reliability of relay protection systems." Eastern-European Journal of Enterprise Technologies 4, no. 2 (130) (2024): 67–77. http://dx.doi.org/10.15587/1729-4061.2024.310549.

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This article presents a reliability assessment model for relay protection devices using fuzzy logic. It introduces an algorithm for simulating these devices, employing the Mamdani model with an "if-then" rule base. Inputs include the percentage of correct operation and the frequency of correct and incorrect operations. Implemented in Matlab with 21 rules, the fuzzy logic model uses triangular membership functions for input and output variables, with defuzzification via the center of gravity method. The model was tested using statistical data from SIEMENS SIPROTEC terminals, specifically distan

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15

Kulikov, Aleksandr, Pavel Ilyushin, and Anton Loskutov. "Enhanced Readability of Electrical Network Complex Emergency Modes Provided by Data Compression Methods." Information 14, no. 4 (2023): 230. http://dx.doi.org/10.3390/info14040230.

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Current microprocessor-based relay protection and automation (RPA) devices supported by IEC 61850 provide access to a large amount of information on the protected or controlled electric power facility in real time. The issue of using such information (Big Data) in order to improve the parameters of technical modification of intelligent electronic devices at digital substations remains unaddressed. Prerequisites arise for designing modern power systems with relay protection devices of a new generation based on new information algorithms. In particular, it is expedient to develop multi-parameter

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Zimovets, A. I., V. I. Zatsepina, E. P. Zatsepin та O. Ya Shасhпеv. "APPLICATION OF МIСROРRОСЕSSОR RELAY PROTECTION IN MOBILE ОВSЕRVАТIОN POSTS". Vesti vysshikh uchebnykh zavedenii Chernozem ya 19, № 1 (2023): 10–18. http://dx.doi.org/10.53015/18159958_2023_19_1_10.

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The article presents а research paper on the prospects for the development of microprocessor relay protection in the mining industry. The positive aspects of digitalization of the electric grid complex are described. The main problems in the field of relay protection infrastructure are presented. Familiarization with a specialized microprocessor relay protection device, which includes standard and specific RPA functions. The implemented functions are described: protection against cable core breakage; independent selection of up to four сurrеnt and time setpoints; 8 current and voltage measurin

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17

Gurevich, Vladimir. "Reliability of microprocessor-based relay protection devices: Myths and reality." Serbian Journal of Electrical Engineering 6, no. 1 (2009): 167–86. http://dx.doi.org/10.2298/sjee0901167g.

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Gurevich, Vladimir. "Tests of microprocessor-based relay protection devices: Problems and solutions." Serbian Journal of Electrical Engineering 6, no. 2 (2009): 333–41. http://dx.doi.org/10.2298/sjee0902333g.

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Костин, Алексей Петрович. "PROSPECTS FOR APPLICATION OF THE FUNCTIONAL CAPABILITIES OF MICROPROCESSOR TERMINALS OF RELAY PROTECTION UNDER DIGITALIZATION CONDITIONS ON THE FAR EASTERN RAILWAY." Транспорт: Наука, техника, управление, no. 7 (July 2, 2024): 27–30. http://dx.doi.org/10.36535/0236-1914-2023-07-5.

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Целью работы является оценка перспективы применения функциональных возможностей современных микропроцессорных терминалов релейной защиты на Дальневосточной железной дороге. Так же рассмотрены функциональные возможности современных микропроцессорных терминалов защит. Приведен сравнительный анализ устройств защиты на фидерах контактной сети электрифицированного участка Дальневосточной железной дороги, с учетом их элементной базы. Рассмотрены причины неудовлетворительной работы функции определения места повреждения в современных терминалах защит, а также дополнительные факторы, которые вносят пог

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Zenina, Elena. "Analysis of Electromagnetic Compatibility of Microprocessor Relay Protection and Automation Devices." NBI Technologies, no. 2 (October 2021): 12–15. http://dx.doi.org/10.15688/nbit.jvolsu.2021.2.2.

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In the modern conditions of the development of the electric power complex, relay protection and automation devices play a special role related to protection against possible damage resulting from violations of normal operating modes, both of individual elements and the entire power system as a whole. This, in turn, directly affects the reliable and stable functioning of the main power elements and electrical equipment. Damage to the power part of the equipment of an electric grid complex can be caused by changes in the main parameters of the normal mode: a change (increase) in currents leads t

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Sereda, O. G., L. B. Zhorniak, and O. G. Sereda. "Improving the protective properties of electrical equipment in low-voltage cabinets of complete transformer substations auxiliaries NPP." Electrical Engineering and Power Engineering, no. 2 (June 14, 2025): 37–48. https://doi.org/10.15588/1607-6761-2025-2-4.

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Purpose. Analyze the existing problems in the relay-current protection system of electrical installations of 0.4 kV auxiliary substations of nuclear power plants, which do not allow the implementing the "long-range backup" mode, as well as to increase the sensitivity of relay protection devices to remote short-circuit currents by using additional criteria for identifying emergency modes in order to ensure selectivity and and protection against remote redundancy failures. Methodology. Method of system analysis and synthesis, as well as the theory of electromagnetic transient processes in electr

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Konovalov, Yuriy, Anton Vaygachev, Maksim Velichko, and Roman Istratov. "ELECTRICAL SUPPLY AND ELECTRICAL EQUIPMENT OF MODERN DRILLING RIG." Scientific Papers Collection of the Angarsk State Technical University 2020, no. 1 (2020): 211–19. http://dx.doi.org/10.36629/2686-7788-2020-1-211-219.

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From the point of view of improving energy efficiency, new functions of modern drilling rigs are considered, which include the introduction of supervisory control, collection, processing, display and archiving of information, equipping microprocessor relay protection devices for highvoltage transformers, complete transistor devices for controlling electric drives, and a system for monitoring drilling process parameters.

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Rumiantsev, Yu V., and F. A. Romaniuk. "An Artificial Neural Network Developed in MATLAB-Simulink for Reconstruction a Distorted Secondary Current Waveform. Part 1." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 64, no. 6 (2021): 479–91. http://dx.doi.org/10.21122/1029-7448-2021-64-6-479-491.

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Recently, there has been an increased interest in the use of artificial neural networks in various branches of the electric power industry including relay protection. Аrtificial neural networks are one of the fastest growing areas in artificial intelligence technology. Recently, there has been an increased interest in the use of аrtificial neural networks in the electric power engineering, including relay protection. Existing microprocessor-based relay protection devices use a traditional digital signal processing of the monitored signals which is reduced to a multiplying the values of success

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Saleem, Adeel, Atif Iqbal, Kashif Mehmood, Muhammad Adnan Samad, Muhammad Aftab Hayat, and Usamah Manzoor. "Modelling and Implementation of Microprocessor Based Numerical Relay for Protection Against Over/Under Current, Over/Under Voltage." Journal of Computational and Theoretical Nanoscience 17, no. 2 (2020): 1332–38. http://dx.doi.org/10.1166/jctn.2020.8809.

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This paper includes the design and implementation of Numerical Relay that can protect the equipment against over-voltage, over-current and under voltage. Although, every power system is subjected to faults and these faults can severe damage to the power system. Therefore, it is necessary to observe and resolve in time to avoid a large damage such as blackouts. For this purpose, there should be some sensing devices, which give signals to the circuit breakers for preventing of power system damages. The multipurpose relays have much importance role in power system for sensing and measuring the am

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Andreev, Mikhail, Aleksey Suvorov, and Vladimir Rudnik. "Identification of measuring part elements of numerical relay protection by its response time." Proceedings of Irkutsk State Technical University 24, no. 5 (2020): 1030–40. http://dx.doi.org/10.21285/1814-3520-2020-5-1030-1040.

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The purpose of the study is to develop an identification method of a specific implementation of the elements of the measuring part (intermediate converters, analog filters) and partially computational-logical part (digital filters) of a microprocessor relay protection by the signal actuation time, which, unlike the existing approaches allows to identify and exclude the delays introduced by the executive protection elements. The method of directed graphs is used to form a mathematical model of the measuring part of the microprocessor relay protection. The solution formed as a result of differen

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Bochkarev, S. V., and R. R. Khisamov. "THE PROBLEM OF ASSESSING THE RELIABILITY OF MICROPROCESSOR RELAY PROTECTION DEVICES." Scientific and Technical Volga region Bulletin 8, no. 6 (2018): 91–94. http://dx.doi.org/10.24153/2079-5920-2018-8-6-91-94.

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Cherkashyna, Veronika, and Vladyslav Tsyupa. "ANALYSIS OF DIFFERENTIAL RELAY PROTECTION ALGORITHMS AND THEIR MODELLING IN MATLAB." Bulletin of the National Technical University "KhPI". Series: Energy: Reliability and Energy Efficiency, no. 1 (6) (July 9, 2023): 113–18. http://dx.doi.org/10.20998/2224-0349.2023.01.13.

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The paper is devoted to identifying the prospects for software implementation of differential relay protection. The purpose of this study was to analyse the algorithms of the devices' operation, which allowed to create a mathematical model in the MATLAB software environment with the prospect of integration in the form of a single regional relay protection server into the unified energy system of Ukraine. It has been established that virtual models have both advantages and disadvantages compared to digital-analog devices. Their positive feature is that, due to the block principle of constructio

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Rumiantsev, Yu V., and F. A. Romaniuk. "An Artificial Neural Network Developed in MATLAB-Simulink for Reconstruction a Distorted Secondary Current Waveform. Part 2." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 65, no. 1 (2022): 5–21. http://dx.doi.org/10.21122/1029-7448-2022-65-1-5-21.

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Recently, there has been an increased interest in the use of artificial neural networks in various branches of the electric power industry including relay protection. The operation of the traditional microprocessor-based relay protection device is based on calculation the RMS values of the monitored current and voltage signals and its comparison with the predetermined thresholds. However, calculated RMS values often do not reflect the real processes occurring in the electrical equipment under protection due to, for example, current transformer saturation. In this case secondary current has a c

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Bulychev, Alexander V., and Maxim A. Gribkov. "ELECTROMAGNETIC CURRENT CONVERTERS: OPERATING LIMITS." Vestnik Chuvashskogo universiteta, no. 2 (June 30, 2023): 64–75. http://dx.doi.org/10.47026/1810-1909-2023-2-64-75.

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The urgency of the task is due to the desire to ensure the ideal transmission of primary relay protection signals to microprocessor devices. The article presents the materials of the comprehensive study of electromagnetic current converters from the standpoint of assessing the possibility of using them as current sensors in microprocessor relay protection systems. The study was conducted in order to assess the limiting capabilities of electromagnetic current converters by analyzing their methodological errors. To assess the methodological errors of electromagnetic current converters, the mathe

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Platonova, E. V., V. I. Panteleev, G. N. Chistyakov, A. V. Mainagashev, and V. P. Kochetkov. "Prediction of improper operation of microprocessor relay protection devices during geomagnetic storms." IOP Conference Series: Materials Science and Engineering 450 (November 30, 2018): 072013. http://dx.doi.org/10.1088/1757-899x/450/7/072013.

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Arduini, Fernando, Marian Lanzrath, Samikshya Ghosalkar, Arash Nateghi, Sven Fisahn, and Martin Schaarschmidt. "Vulnerability of Smart Grid-enabled Protection Relays to IEMI." Advances in Radio Science 20 (July 27, 2023): 131–39. http://dx.doi.org/10.5194/ars-20-131-2023.

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Abstract. The electricity sector has been undergoing transformations towards the smart grid concept, which aims to improve the robustness, efficiency, and flexibility of the power system. This transition has been achieved by the introduction of smart electronic devices (SEDs) and advanced automatic control and communication systems. Despite the benefits of such modernization, safety issues have emerged with significant concern by experts and entities worldwide. One of these issues is known as Intentional Electromagnetic Interference (IEMI), where offenders employ high-power electromagnetic sou

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Ansabekova, Gulbakyt, Yermek Sarsikeyev, Zhubanyshbai Abdimuratov, et al. "Development of intelligent protection and automation control systems using fuzzy logic elements." International Journal of Electrical and Computer Engineering (IJECE) 14, no. 1 (2024): 556–65. https://doi.org/10.11591/ijece.v14i1.pp556-565.

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In this article, the causes of technological disturbances in electrical systems are considered, and several characteristic disadvantages of the protection and automation of elements of electrical systems are highlighted. The tendency to decrease the reliability of relay protection associated with the transition from analog to digital types of protection is substantiated. Based on the studied examples, the use of fuzzy logic in protections, the expediency of using fuzzy logic elements in protection devices, and the automation of electrical systems to identify types of short circuits are justifi

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Bunko, V. Ya. "USE OF MICROPROCESSOR ELEMENTS OF RELAY PROTECTION IN DISTRIBUTION DEVICES OF ENERGY SYSTEMS." Scientific notes of Taurida National V.I. Vernadsky University. Series: Technical Sciences 5, no. 1 (2019): 6–11. http://dx.doi.org/10.32838/2663-5941/2019.5-1/02.

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Romaniuk, F. A., V. Yu Rumiantsev, Yu V. Rumiantsev, and V. S. Kachenya. "Orthogonal Components Forming of the Microprocessor-Based Protection Input Signals." ENERGETIKA. Proceedings of CIS higher education institutions and power engineering associations 63, no. 4 (2020): 328–39. http://dx.doi.org/10.21122/1029-7448-2020-63-4-328-339.

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The use of orthogonal components (OS) is the main direction of determining information parameters in microprocessor relay protection and automation of electric power systems. Most of the measuring devices used in modern protection and automation devices can be implemented using known operating systems. Digital non-recursive frequency filters based on discrete Fourier transform are used for OS selection. The main disadvantage of these filters is their low performance that exceeds the period of industrial frequency. For the construction of high-speed measuring devices, this time of establishing

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Vostrikov, M. V., A. V. Daneyv, K. V. Menaker, and V. N. Sizykh. "EVALUATION OF THE RELIABILITY OF AN AUTOMATED FILTRATION DEVICE IN THE UPGRADED MICROPROCESSOR RELAY PROTECTION OF CONTACT NETWORK FEEDERS." Izvestiya of Samara Scientific Center of the Russian Academy of Sciences 23, no. 6 (2021): 126–39. http://dx.doi.org/10.37313/1990-5378-2021-23-6-126-139.

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The article presents the results of scientific research in the field of assessing the reliability and safety of the patented automated device for filtering and isolating the first harmonic based on the PLL scheme integrated into a typical microprocessor system for relay protection of AC contact network feeders in order to meet the reliability and safety indicators during its operation. The operation of the device is based on pre-filtering the signal using a low-pass filter tuned to the cutoff frequency of the third harmonic, fixing zero timestamps, forming control pulses, rectification of the

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Vukolov, V. Yu, A. A. Petrov, S. N. Yurtaev, and R. Sh Bedretdinov. "Development of universal algorithm of voltage circuits detecting faults of microprocessor protection and automation devices." Vestnik IGEU, no. 3 (June 30, 2021): 33–41. http://dx.doi.org/10.17588/2072-2672.2021.3.033-041.

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Reliability, along with response speed, sensitivity, and selectivity, is the key requirement for relay protection (RP) devices. The reliability of modern RP digital terminals is understood as protection operation for all estimated failure modes and failure of protection equipment to operate in all other modes, in which this protection is not provided. Analysis of the secondary voltage schemes and algorithms of detecting faults in these circuits reveals several disadvantages of the implementation of blocking in case of faults in voltage circuits. All existing algorithms and blocking schemes in

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Vukolov, Vladimir, Mikhail Obalin, and Anton Petrov. "Improvement of algorithms for voltage circuits fault detection in relay protection terminal of 6-35 kV electrical networks." E3S Web of Conferences 139 (2019): 01061. http://dx.doi.org/10.1051/e3sconf/201913901061.

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Issues of increase of consumer power supply reliability by prevention of protection device false operation and unreasonable tripping of the protected network element at malfunction of measuring voltage transformer secondary circuits are considered. Options for implementation in relay protection microprocessor terminals of advanced blocking algorithms in case of voltage circuits fault are proposed.

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Shushpanov, Ilia, and Konstantin Suslov. "About Flexibility Problem of Distribution Electrical Network." EPJ Web of Conferences 217 (2019): 01014. http://dx.doi.org/10.1051/epjconf/201921701014.

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Global electricity companies have embarked on a transition to digital microprocessor devices. Digitalization penetrates every aspect of power industry, whether it is power generation, transmission or distribution. Being the most widespread, the distribution electrical networks are nevertheless the least digitalized. Some issues about them are still insufficiently studied. These are the collection of necessary information, adaptation methods, and the effect of the unrecognizability of some short circuits. This can be explained by improper placement of devices, which causes lack of data, which,

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39

Novobritsky, V. A., and D. S. Fedosov. "The.main types of wind turbines-generators in the power supply system." Power engineering: research, equipment, technology 23, no. 5 (2022): 71–85. http://dx.doi.org/10.30724/1998-9903-2021-23-5-71-85.

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THE PURPOSE. This paper considers the problem of relay protection functioning when the current transformer reaches the saturation mode which is provided by transient processes.METHODS. MATLAB Simulink software environment allows reproducing the method of statespace representation by using structural blocks. The model is verified by comparison the time to saturation, obtained by calculation and according to the graphical data of the model. The separation of variables method extracts and graphically displays the investigated components.RESULTS. This paper reveals that applying the requirements o

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Morozov, Sergey, and Andrey Morozov. "INFLUENCE OF THE REMNANT MAGNETIZATION OF THE CURRENT TRANSFORMER CORES UPON THE COMPLIANCE OF THEIR TECHNICAL CHARACTERISTICS WITH THE REQUIREMENTS FOR MICROPROCESSOR TYPE PROTECTIVE RELAYS." Automation and modeling in design and management 2021, no. 3-4 (2021): 77–84. http://dx.doi.org/10.30987/2658-6436-2021-3-4-77-84.

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Work objective is finding rational technical and economic solutions for examining current transformers for techspecs compliance satisfying the requirements of reinstalled microprocessor type protective relays and automation devices manufactured by NP EKRA LLC, taking into account DC component. Research methods: analytical methods for calculating the time of remnant magnetization in the core of a current transformer. Research results and novelty: it is understood that the saturation time of current transformers of the basic and backup protections, according to the results of the analytical meth

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Alexandr, Neftissov, Biloshchytskyi Andrii, Talipov Olzhas, and Andreyeva Oxana. "Determination of the magnitude of short-circuit surge current for the construction of relay protection on reed switches and microprocessors." Eastern-European Journal of Enterprise Technologies 6, no. 5 (114) (2021): 41–48. https://doi.org/10.15587/1729-4061.2021.245644.

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A study of the functioning of reed switches under the influence of a magnetic field created by a current in a conductor in a transient mode with the presence of an aperiodic component has been carried out. A well-known method for determining current using reed switches was implemented. At the same time, it was determined that the originally formulated method did not give the required result within the limits of errors. This is most likely due to the peculiarities of the mechanism of movement of the reed switch contacts. Alternatively, the measurements were taken to take the return currents ins

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42

Polishchuk, V. I., M. V. Kritsky, D. M. Bannov, and S. V. Malyshev. "Application of unified microprocessor relay protection units in electrical machine diagnostics." Power engineering: research, equipment, technology 21, no. 6 (2020): 93–100. http://dx.doi.org/10.30724/1998-9903-2019-21-6-93-100.

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The article concentrates on the topical issue connected with the detection of defects in the rotor winding of electric machines. The experimental sampling and digital processing of electrical signals from controlled windings is in the basis. The authors conducted the research using two experimental units for asynchronous motor and synchronous generator, respectively. A distinctive feature of the proposed research stands is in solving the problems of digital processing and data analysis on the basis of the application of microprocessor relay protection unit BMRZ developed in Russia. The authors

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Sizykh, Viktor, Maksim Vostrikov, Aleksei Daneev, and Konstantin Menaker. "Automation of the Process of Measurement of Electrical Parameters in Microprocessor Devices of Relay Protection." Transportation Research Procedia 61 (2022): 467–74. http://dx.doi.org/10.1016/j.trpro.2022.01.076.

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Bannov, D. M., and V. I. Polishchuk. "ginal article Application of a microprocessor-based relay protection unit for identifying internal faults of electrical equipment of electrical installations." iPolytech Journal 28, no. 4 (2025): 521–33. https://doi.org/10.21285/1814-3520-2024-4-521-533.

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We aim to determine the applicability of standard microprocessor units of relay protection and automatics for obtaining a digital signal of currents for their subsequent mathematical processing with the purpose of identifying internal faults of electrical equipment. Mathematical processing of experimental data (time series) based on regression analysis approximation in orthogonal basis was carried out. To that end, the weight coefficients of basis functions obtained by the least squares method were compared in terms of multidimensional space vectors, corresponding to the coordinates of this sp

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Sizykh, Viktor Nikolaevich, Aleksey Vasilyevich Daneev, Maksim Viktorovich Vostrikov, and Konstantin Vladimirovich Menaker. "The Automated System of Unified Templates as an Element of Trainability of Microprocessor Relay Protection Devices." Journal of Applied Mathematics and Physics 09, no. 12 (2021): 3045–57. http://dx.doi.org/10.4236/jamp.2021.912197.

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Bunko, Vasyl Ya, Mykola V. Potapenko, and Nazarii V. Bunko. "MODELING PROCESSES OF CONTROLLING MICROPROCESSOR DEVICES OF RELAY PROTECTION AND AUTOMATION USING THE INTERNAL LOGIC EDITOR." Collection of Scientific Publications NUS, no. 1 (494) (2024): 74–79. http://dx.doi.org/10.15589/znp2024.1(494).10.

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Andreev, O. N., and A. L. Slavutskiy. "Neural Network Hardware and Software Real Time Control of Electrical Signals Phase Shift." Vestnik IzhGTU imeni M.T. Kalashnikova 26, no. 2 (2023): 76–84. http://dx.doi.org/10.22213/2413-1172-2023-2-76-84.

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Artificial neural networks are increasingly being used in the intelligent electric power industry. Smart grids are the key components of digital economy. The work purpose is to show the possibility of using a simple architecture neural network in the appropriate microprocessor engineering for improvement such microprocessor device characteristics as reducing the device reaction time, increasing the decision-making accuracy in the accident and the ability to more accurate localization of the accident site. This reduces the negative accident consequences, time of determination of the accident lo

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Мірошник, О. О., О. М. Мороз, В. Г. Пазій, Д. Г. Миргород, Р. О. Ганус та С. В. Галько. "RESEARCH AND COMPARISON OF CHARACTERISTICS OF THE MICROPROCESSOR RELAY PROTECTION AND AUTOMATION DEVICE РС83-АВ3 COMPANY "RPA SYSTEMS" WITH ELECTROMECHANICAL DEVICES". Праці Таврійського державного агротехнологічного університету імені Дмитра Моторного 24, № 2 (2024): 78–95. http://dx.doi.org/10.32782/2078-0877-2024-24-2-7.

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49

Neftissov, Alexandr, Andrii Biloshchytskyi, Olzhas Talipov, and Oxana Andreyeva. "Determination of the magnitude of short-circuit surge current for the construction of relay protection on reed switches and microprocessors." Eastern-European Journal of Enterprise Technologies 6, no. 5 (114) (2021): 41–48. http://dx.doi.org/10.15587/1729-4061.2021.245644.

Full text

Abstract:

A study of the functioning of reed switches under the influence of a magnetic field created by a current in a conductor in a transient mode with the presence of an aperiodic component has been carried out. A well-known method for determining current using reed switches was implemented. At the same time, it was determined that the originally formulated method did not give the required result within the limits of errors. This is most likely due to the peculiarities of the mechanism of movement of the reed switch contacts. Alternatively, the measurements were taken to take the return currents ins

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50

Zenina, Elena. "Analysis of the Russian Regulatory Base to Ensure the Electromagnetic Compatibility of Microprocessor Relay Protection and Automation Devices." NBI Technologies, no. 3 (December 2021): 11–14. http://dx.doi.org/10.15688/nbit.jvolsu.2021.3.2.

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In this work, the author analyzed the texts of normative documents on ensuring electromagnetic compatibility (EMC) of microprocessor relay protection devices (MPS), aimed at creating conditions for ensuring the uninterrupted functioning of power circuits of the electric power complex and their secondary circuits, ensuring the tracking of all processes, collecting information, accounting for electricity and operational control of main technological equipment in real EMO conditions. Controversial issues enshrined in regulatory documents were considered, their relevance was assessed. During the a

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