This article details the construction principles of contactless ferromagnetic converters designed for measuring and controlling direct currents used in high-voltage electrical installations, their operating principle, and the main requirements they must meet according to state and international standards. According to the research results, the proposed design solution, unlike traditional converters, is characterized by its ability to accept a wide range of changes in the control signal, high measurement accuracy and sensitivity, technological simplicity, minimal material consumption, low cost, compact dimensions, and light weight. The article also provides an in-depth analysis of the errors caused in the measurement process by currents flowing in corresponding and opposite directions through adjacent busbars in non-contact magnetomodulation converters. The conducted research showed that the errors arising from the magnetic influence of adjacent busbar currents differ significantly depending on the number of measurement points and the number of divisions in the magnetic core. In particular, when the number of measurement points exceeds twelve, the error can sharply decrease or, conversely, increase depending on the density of magnetic field divisions. This indicates the need to select optimal parameters in the design of the converters. The developed new generation of magnetic-modulation contactless converters has wide practical application potential and shows high efficiency in contactless monitoring of alternating and direct currents in industrial enterprises, railway automation, metallurgical processes, water supply systems, land reclamation, scientific and technical research, and other sectors. It can also be effectively used for on-site calibration and verification of electricity meters, especially on high-current busbars, where no additional mechanical connections are required.
| Mualliflar | Plaxtiyev, Anatoliy Mexaylovich, Meliboyev, Yax’yojon A’zamjono‘g‘li, Xasanov, Otabek Abdumo‘mino‘g‘li, Плахтиев, Анатолий Михайлович, Мелибоев, Яхёжон Аъзамжонугли, Хасанов, Отабек Абдумуминугли, Plakhtiev, Anatoly Mekhailovich, Meliboev, Yahyojon Azamjonugli, Khasanov, Otabek Abdumuminugli |
|---|---|
| Jurnal | Саноатда рақамли технологиялар |
| Nashr sanasi | 2025-12-25 |
| Jild | 3 |
| Son | 4 |
| Betlar | 228-235 |
| Til | O‘zbek |
| DOI | 10.70769/3030-3214.srt.3.4.2025.41 |
DOI: 10.70769/3030-3214.srt.3.4.2025.41 · Maqolaning asl sahifasi
kontaktsiz o‘zgartkich, xatolik, suv ta’minoti, nazorat va boshqarish tizimlari, modulyatsiya, contactless converter, error, water supply, control and management systems, modulation, бесконтактный преобразователь, погрешность, водоснабжение, системы контроля и управления, модуляция
This article presents the results of research on the influence of external factors on the quality of processed materials from the “Qizilqum” basalt deposits. During the experiments, mechanical cleaning and assessment of…
The Divalkak field discussed in the article is located in the Ispanly-Chandyr uplift. The productive section is represented by Jurassic carbonate and Lower to Middle Jurassic terrigenous deposits. Geological modeling of…
Robot manipulators encounter significant control challenges stemming from nonlinear dynamics, parametric uncertainties, and external disturbances. While Boolean logic-based controllers operate through precise binary…
Under conditions of increasing depth and complexity of well overhaul, especially during the opening of the second wellbore under conditions of abnormally low reservoir pressure (APDC), the risk of complications arising…
This article presents the results of laboratory and industrial studies on the flotation beneficiation of polymetallic ores from the Khandiza deposit. The main focus is on the influence of reagent regimes on the quality…
The article analyzes the geological and petrochemical features of the Yakhton magmatic-metallogenic structure. It has been shown that the main magmatic components - granitoids, lamprophyres, and alkaline basaltoids…
This paper discusses the development of a modified, environmentally safe adhesive based on liquid glass (sodium silicate Na₂O·nSiO₂) with enhanced adhesion efficiency to wood. The sodium silicate used fully complies…
The article examines the issue of intensifying gas extraction from water-flooded reservoirs. The wells of the Shimoliy Berdakh field are taken as an example, where almost all 48 wells in the operational fund produce…
The article is devoted to the analysis of working with the software product TIM CREDO Mine Surveying using data from the Mikashevichi granite quarry. The study examines the process of data processing using point clouds…
This paper presents an integrated methodology for the quantitative assessment of Oil Displacement Efficiency by Water (ODEW) in fractured-porous carbonate reservoirs using a multivariate statistical analysis. We examine…