Ivan A Pavlovich

@bsatu.by

Practical training of students/AGRO-POWER FACULTY
Belarusian State Agrarian Technical University



              

https://researchid.co/pps_pia

RESEARCH, TEACHING, or OTHER INTERESTS

General Energy, Energy Engineering and Power Technology

5

Scopus Publications

47

Scholar Citations

4

Scholar h-index

3

Scholar i10-index

Scopus Publications

  • Methods for Calculating the Resistance of Grounding Devices with Backfilling Special Compositions
    Mikhail Drako, Ivan Pavlovich, and Siarhei Baraishuk
    EDP Sciences
    Traditional analytical methods for calculating and designing of grounding devices (GDs) in heterogeneous soils can lead to results that do not correspond to those obtained in practice. The empirical coefficients used in calculations of grounding systems given in various literature sources do not always give an explicable and significant discrepancy with the same initial data. In this paper, some well-known methods for calculating the spreading resistance of GDs are considered and the obtained results are compared with experimental data. It is shown that the recommendations and algorithms for calculating the resistance of GDs, presented in the well-known reference literature and regulatory documentation, do not give full and correct description for grounding devices installed in heterogeneous soil. In particular, it is shown that such a factor as the proportional ratio of soils with different resistivity practically does not affect the final result. This fact may mislead specialists, since the results obtained may differ significantly from what is observed in practice after the installation of GDs. The study proposes a calculation method and shows a fairly good convergence of the results with experimental data, and defines a further direction in optimizing calculation methods GDs.

  • Ensuring the reliability of energy systems through the application of a new method for introducing soil-replacement mixtures during the installation of deep grounding devices
    Ivan Pavlovich, Siarhei Baraishuk, Muzaffar Murodov, and Khurshed Abdulkhayev
    EDP Sciences
    This paper discusses a method for using mixtures to optimize the electrical parameters of grounding devices during the installation of vertical composite ground electrodes. The authors propose a design for the coupling and tip for vertical composite ground electrodes. Various techniques for artificially reducing the resistance of the grounding circuit are examined. Results from vertical electrode soundings of the soil at grounding locations are presented. The proposed method allows for the introduction of a mixture simultaneously with the vertical composite grounding electrode, including designs for the coupling, tip, and auxiliary device. Experimental studies of the proposed design have been conducted, and results measuring the resistance to current spread of such grounding devices are presented for both standard and proposed couplings.

  • A Method of Applying Mixtures to Optimize Grounding during Installation of Vertical Composite Grounding Devices
    I. Pavlovich, S. Baraishuk, M. Murodov and M. Nabiev

    The article considers the method of using mixtures to optimize the electrophysical  parameters of grounding devices in conjunction with vertical composite grounding conductors.  It has been found that fluctuations in soil resistivity caused by changes in weather and climatic conditions can lead to instability of the ground loop resistance. The study shown that without appropriate measures, the resistance of the loop as a result of seasonal changes in soil properties may exceed acceptable values. This is fraught with deviations in the resistance to current spreading of grounding devices beyond the limits of acceptable parameters. To compensate for these fluctuations, a method is proposed to reduce the seasonality factor. Reducing seasonality plays an important role in ensuring the safety of service personnel and farm animals by maintaining the  resistance of the grounding device within the limits of regulatory values. The authors discuss methods for artificially reducing the resistance of the ground loop, including increasing its size and using deep ground electrodes. The results of vertical electrode probing of the soil at the sites of grounding conductors are presented, the effect of humidity on the resistivity of the soil is shown, the influence of soil layering and the presence of moisture-saturated soil layers is considered.  A method is proposed that allows the mixture to be introduced together with a vertical composite grounding device, the design of the coupling, tip and auxiliary device, experimental studies of the proposed designs are carried out and the results of measuring the current spreading resistance  of such a grounding device with both standard and proposed couplings are presented. A comparison was made with a grounding device without the use of mixtures. The measurement results demonstrate that with an increase in the length of the grounding device, its diameter and the volume of the injected mixture, the resistance decreases. It is shown that the proposed solution makes it possible to reduce seasonality by 1.64–2.1 times, depending on the couplings used, and to obtain a grounding conductor with an equivalent diameter dozens of times larger than the diameter of  a composite grounding conductor. The authors propose the use of soil-replacing mixtures to reduce soil resistivity and ensure the stability of the grounding loop throughout the entire service life.  The proposed method of applying mixtures without pre-drilling makes it possible to reduce the cost of constructing grounding devices.

  • Ensuring the reliability of energy systems with the application of a new method of decreasing seasonal variations of ground resistance
    Ivan Pavlovich, Siarhei Baraishuk, and Alexey Skripko
    EDP Sciences
    The possibility of improving the reliability of the grounding system is shown. The analysis of dependence of soil resistivity on humidity was carried out, on the basis of which a composition for normalization (reduction of seasonality) of soil electrical resistivity was proposed. A number of full-scale experiments were carried out to measure the resistance values of the grounding devices of experimental circuits, after backfilling the places of laying the contour elements with various compositions and introducing other types of soils and minerals.

  • Reduction of the Electrical Resistance of Grounding Devices by the Use of a Soil Replacement Mixture Based on Graphite and Hydrogel to Stabilize the Electrophysical Parameters of the Soil
    I. A. Pavlovich and S. M. Baraishuk
    Belarusian National Technical University
    This article discusses the factors that affect the electrical resistance of the current spreading of the grounding device. The issue of the electrophysical parameters of the soil that affect its resistivity and the consideration of such parameters in the design of grounding devices is considered. It is shown that keeping moisture in the near-electrode space of the grounding electrode, as well as maintaining it at a certain level, facilitates improving the quality and reliability of the grounding. A relationship has been established between the ability to retain moisture and the magnitude of seasonal fluctuations in the electrical resistance of the soixl, and also the season factor, which takes into account changes under different climatic environmental conditions. The issues of application of various methods of reducing the resistivity of the soil during mounting of grounding devices are considered. One of the main ways to reduce ground resistance is the use of solutions of various mineral salts. This method is not optimal, as it accelerates the corrosion processes in the materials of the ground electrodes. Therefore, the paper also considers other ways to reduce the resistance of the ground loop; in particular, the authors propose a method for reducing the resistance of a grounding device based on the method of partial replacing the soil in the near-electrode region with a mixture with a lower resistivity capable of collecting moisture based on graphite and hydrogel. This type of mixture is environmentally friendly when used, as well as it is non-aggressive to the material of the ground loop. The principle of operation of this mixture is based on the fact that the hydrogel makes it possible to stabilize the moisture at the site of laying the circuit, while graphite increases the overall conductivity of the mixture. The paper presents the results of laboratory studies, which have been carried out in accordance with GOST 9.602–2016. For this purpose, control samples were placed in containers made of a non-conductive material (plexiglas) and dependence of resistivity on moisture, temperature, specific content of graphite and hydrogel was measured. The article presents graphs of the dependences of the mixture specific resistance on moisture, temperature, and the quantitative content of the hydrogel. From the results obtained, it can be concluded that the mixture in can be used in the energy sector to improve the reliability of electrical installations and ensure electrical safety.

RECENT SCHOLAR PUBLICATIONS

  • Применение технологии виртуальной реальности при изучении дисциплины Монтаж и обслуживание электроустановок
    СС Нефедов, ОМ Михалкович, ИА Павлович, СМ Барайшук
     2024

  • Способ внесения смесей для оптимизации заземления при монтаже вертикальных составных заземлителей
    ИА Павлович, СМ Барайшук, М Муродов, М Набиев
    Энергетика. Известия высших учебных заведений и энергетических объединений 2024

  • Особенности монтажа контура заземления в высокоомных грунтах
    ЯЛ Кленицкий, ИА Павлович
    БГАТУ 2024

  • Снижение влияния напряжений прикосновения и шага на рост и продуктивность сельскохозяйственных животных. Обзор
    ИА Павлович, МХ Муродов, СМ Барайшук, МЯ Набиев
     2024

  • Потенциал индуцированная деградация покрытий для фотоэлектрических преобразователей
    СМ Барайшук, ИА Павлович, ВА Занько
    КДУ 2024

  • Способ снижения сезонных изменений сопротивления заземляющих устройств
    СМ Барайшук, ИА Павлович, МХ Муродов, ВВ Богданович
    БГАТУ 2023

  • Методики расчета сопротивления заземляющего устройства, выполненного с применением грунтозамещающей смеси, для оптимизации электрофизических параметров грунта
    ИА Павлович, СМ Барайшук, ВВ Богданович
     2023

  • Монтаж и обслуживание электроустановок. Лабораторный практикум
    ИА Павлович, МВ Янко, СС Нефедов, ВВ Богданович, СМ Барайшук
    БГАТУ 2023

  • Внедрение VR-технологий для обучения студентов агроэнергетинеского факультета
    ИА Павлович
    БГАТУ 2023

  • Периодичность проведения технического обслуживания контура заземления
    ДВ Драгун, ВА Скубанович, ИА Павлович
    БГАТУ 2023

  • Периодичность технического обслуживания устройств выравнивания и уравнивания электрических потенциалов на объектах АПК
    ЯЛ Кленицкий, ИА Павлович
    БГАТУ 2023

  • Особенность монтажа винтовых заземлителей
    АВ Бельская, ИА Павлович
    БГАТУ 2023

  • Периодичность проведения технического обслуживания асинхронных электродвигателей на объектах АПК
    АВ Радиванович, МС Картинник, ИА Павлович
    БГАТУ 2023

  • Современное оборудование
    ИА Павлович
    БГАТУ 2023

  • Снижение электрического сопротивления заземляющих устройств применением грунтозамещающей смеси на основе графита и гидрогеля для стабилизации электрофизических параметров грунта
    ИА Павлович, СМ Барайшук
    Энергетика. Известия высших учебных заведений и энергетических объединений 2023

  • Применение грунт-замещающей смеси при монтаже заземляющих устройств в районах с высоким удельным сопротивлением грунта
    СМ Барайшук, ИА Павлович, МХ Муродов
    БГАТУ 2022

  • Обеспечение надежности систем энергетики, применением нового метода снижения сезонных колебаний сопротивления заземления
    ИА Павлович, СМ Барайшук, АН Скрипко
    ИСЭМ СО РАН 2022

  • Эффективность смесей для обратной засыпки заземления в районах с низкой среднегодовой температурой
    ИА Павлович, СМ Барайшук
    Севастопольский государственный университет 2022

  • Особенности монтажа современных систем управления электроосвещением
    АА Лелей, ИА Павлович
    БГАТУ 2022

  • Особенности монтажа электролитических заземлителей
    ВИ Кузнецов, ИА Павлович
    БГАТУ 2022

MOST CITED SCHOLAR PUBLICATIONS

  • О разработке смеси на основе гидролизованного полиакрилонитрила для уменьшения удельного электрического сопротивления грунт
    МА Драко, СМ Барайшук, ИА Павлович
    Известия высших учебных заведений. ПРОБЛЕМЫ ЭНЕРГЕТИКИ 23 (1), 80-92 2021
    Citations: 14

  • Снижение сопротивления заземляющих устройств применением обработки грунта неагрессивными к материалу заземлителя стабилизирующими влажность добавками
    СМ Барайшук, ИА Павлович, МХ Муродов, ХГ Абдулхаев, АН Скрипко
    БГАТУ 2021
    Citations: 10

  • Снижение сезонных колебаний сопротивления растеканию тока заземляющих устройств применением смесей для стабилизации влажности грунта
    СМ Барайшук, ИА Павлович, МИ Кахоцкий
    Эпоха науки, 87-93 2020
    Citations: 10

  • АН Скрипко Снижение сопротивления заземляющих устройств применением обработки грунта неагрессивными к материалу заземлителя стабилизирующими влажность добавками
    СМ Барайшук, ИА Павлович, МХ Муродов, Х Абдулхаев
    Агропанорама 2021
    Citations: 6

  • Снижение электрического сопротивления заземляющих устройств применением грунтозамещающей смеси на основе графита и гидрогеля для стабилизации электрофизических параметров грунта
    ИА Павлович, СМ Барайшук
    Энергетика. Известия высших учебных заведений и энергетических объединений 2023
    Citations: 3

  • Методики расчета сопротивления заземляющего устройства, выполненного с применением грунтозамещающей смеси, для оптимизации электрофизических параметров грунта
    ИА Павлович, СМ Барайшук, ВВ Богданович
     2023
    Citations: 1

  • Температурная зависимость удельного сопротивления грунтозамещающих композиционных смесей для оптимизации заземления
    ИА Павлович, СМ Барайшук, МХ Муродов
    БГАТУ 2021
    Citations: 1

  • Диэлектрическая сепарация – способ электрофизического управления качеством семян зеленных культур
    Городецкая Е.А.,Дубодел И.Б.,Непарко Т.А.,Городецкий Ю.К.,Качалко А.С ...
    Ш МНП конференция Переработка и управление качеством с.-х. продукции, 6-7 2017
    Citations: 1

  • Диэлектрическая сепарация – альтернативный способ получения однородных партий семян
    Городецкая Е.А.,Городецкий Ю.К.,Цвирко Д.И.,Павлович И.А.,Дубодел И.Б ...
    Юбилейная конференция в Курской государственной сельскохозяйственной академии 2016
    Citations: 1