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Journal articles on the topic 'Transformer connections'

Author: Grafiati

Published: 3 June 2025

Last updated: 31 July 2025

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1

Abdikulova, Z. K., та E. O. Zhaparov. "СALCULATION AND CHOICE OF ELECTRIC CHART OF SUBSTATION OF THE КENTAU TRANSFORMER PLANT". BULLETIN Series of Physics & Mathematical Sciences 70, № 2 (2020): 141–48. http://dx.doi.org/10.51889/2020-2.1728-7901.21.

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Electric supply system in enterprises must provide with electrical supply continuity and reliability as in normal and accidental regimes, quality electro energetic, production efficiency, so in connection with these in the article there have been analyzed work regimes of substations, studied electrical net scheme for Kentau Transformer Plant’s substation, calculated plant’s loads and short circuit currents and on the base of the calculated results curried out inspection for the chosen equipment. The number of connections, reliability of power supply and prospects for development are the determ

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2

Pelpinus Sinay. "PERFORMANCE STUDY OF UNBALANCED LOAD ON OPEN DELTA TRANSFORMERS." International Journal Multidisciplinary Science 2, no. 3 (2023): 82–90. http://dx.doi.org/10.56127/ijml.v2i3.1252.

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A transformer is a device that can transfer (transmit) and change electrical energy from one electrical circuit to another with the same frequency based on the principle of electromagnetic induction. The transformer that will be used in this research is a three-phase open delta connection transformer, which is connected to a delta connected load. If one of the three phase windings in the delta connection transformer is damaged, then the remaining two windings can be implemented or designed into three phase open delta connections, which can be used to distribute three phase electrical power to

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3

Bernadić, Alen, and Zahira Anane. "NEUTRAL POINT CONNECTIONS IN MV POWER NETWORKS WITH GROUNDING ZIGZAG TRANSFORMERS – ANALYSIS AND SIMULATIONS." Journal of Energy - Energija 68, no. 1 (2019): 42–48. http://dx.doi.org/10.37798/20196812.

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Treatment of transformer neutral point in middle-voltage (MV) networks become an important issue with increasing proportion of MV cables in power networks. As consequence, overall capacitance of MV network is increased and moreover earth fault currents magnitudes. In MV networks with feeding transformer winding in delta connection (isolated networks), that earth fault current increase requires forming of artificial ground point – a neutral connection point on a three-phase ungrounded power system. Grounding transformer use, in zigzag or delty-wye connection, is common, well-known solution for

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4

Baqaruzi, Syamsyarief, and Surya Tarmizi Kasim. "Comparison of Effect Efficiency and Voltage Regulation Between Three-Phase Transformer Winding Connections." Bulletin of Computer Science and Electrical Engineering 1, no. 2 (2020): 54–62. http://dx.doi.org/10.25008/bcsee.v1i2.1123.

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A transformer is an important device in electrical processes, as we know static electricity that involves magnetically coupled coils to increase or decrease the voltage. In three-phase transformer, there are various winding connections such as delta-delta (?, ?), wye-wye (Y, Y), wye-delta (Y, ?), delta-wye (?, Y), zig-zag (Z, Z), etc. And of the many often used connection are Yy0, Yd11, Dd0, and Dy5. From these various connections, each connection has different efficiency, losses, and voltage regulation. If they are connected with resistive, inductive, or capacitive loads. This paper method ha

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5

Kastawan, I. Made Wiwit, Ewin Yusuf, and Afif Fadhilah. "Design of Phase-Shifting Transformer Based on Simulink Matlab Simulation." Current Journal: International Journal Applied Technology Research 1, no. 2 (2020): 148–62. http://dx.doi.org/10.35313/ijatr.v1i2.30.

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Using variable speed drive for controlling speed of three-phase induction motor in industrial sector gives an advantage of reducing consumption of electrical energy; on the other hand, it also causes a disadvantage of source current harmonic. To solve the problem of source current harmonic, a method of using phase-shifting transformer is applied. This method may be applied in a system with two VSDs or more connected to a three-phase power supply. The application of this phase-shifting transformer method could be as simple as using of two transformer with Y-y (wye-wye) and Y-d (wye-delta) three

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Seheda, M. S., P. F. Gogolyuk, and Y. V. Blyznak. "High-frequency periodic processes in two-winding power transformers." Naukovyi Visnyk Natsionalnoho Hirnychoho Universytetu, no. 6 (2021): 96–100. http://dx.doi.org/10.33271/nvngu/2021-6/096.

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Purpose. Mathematical modeling of high-frequency periodic processes in winding power transformers to improve the technology of their design and operation. Methodology. The methods of the formation of mathematical models for the research of high-frequency periodic processes in transformers and methods of solving systems of partial differential equations are applied. Findings. The mathematical model for the research of high-frequency periodic processes in two-winding transformers, with adequate considering of electromagnetic connections of windings and structural parameters of transformers, is c

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Ivanchenko, Daniil, and Artem Smirnov. "Identification of interturn faults in power transformers by means of generalized symmetrical components analysis." E3S Web of Conferences 140 (2019): 04007. http://dx.doi.org/10.1051/e3sconf/201914004007.

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The paper deals with experimental identification of transformer internal faults, an important factor in reliability and sustainability of power supply systems. Task of identification of transformer internal faults requires increasing sensitivity of relay protection by calculation of components most sensitive to interwire faults from transformer current. In order to study internal faults in transformer, the model in Simulink MATLAB was developed on the basis of transformer constitutive equations. Transformer with short circuited wires was simulated as a multiwinding transformer. We provide the

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Quan, Yu Sheng, Xin Zhao, Hua Gui Chen, and En Ze Zhou. "The Economic Operation of Common Coupling Groups of Distribution Transformer." Applied Mechanics and Materials 521 (February 2014): 288–91. http://dx.doi.org/10.4028/www.scientific.net/amm.521.288.

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Based on the method of symmetrical components of D, 11 and Y, o distribution transformer coupling two different effects of different magnetic circuit coupled to the three-phase system with a system-generated analysis and comparison. Analysis of the difference between the two groups of different connections on the transformer structure. Described in the single-phase short circuit fault clearing, 3n harmonic current suppression and affordability aspects of single-phase unbalanced load, D, ll coupling transformers are significantly better than Y,0 coupling transformer. This has necessarily import

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9

Tabrez, M., P. K. Sadhu, and A. Iqbal. "A Novel Three Phase to Seven Phase Conversion Technique Using Transformer Winding Connections." Engineering, Technology & Applied Science Research 7, no. 5 (2017): 1953–61. https://doi.org/10.5281/zenodo.1037189.

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This paper proposes a novel multiphase transformer connection scheme which converts three phase balanced AC input to seven phase balanced AC output. Generalized theory to convert a three phase utility supply into any number of phases is presented. Based on the proposed generalized principle, a three phase to seven phase power converting transformer design is presented with connection scheme, analysis and simulation and experimental results of the proposed three phase to seven phase conversion transformer. The proposed transformer in this paper is analyzed and compared with the connection schem

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10

Gaynullina, L. R., and V. P. Tutubalina. "Research of thermal stability of the VG transformer oil in the presence of individual sulfides." Proceedings of the Voronezh State University of Engineering Technologies 80, no. 3 (2018): 336–40. http://dx.doi.org/10.20914/2310-1202-2018-3-336-340.

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In connection with the known negative impact of organosulfur connections on quality of transformer oils and the corresponding rise in price of their production including various ways of cleaning of oil fractions of organosulfur connections re-searches of structural and group structure of oil organosulfur connections and their influence on operational properties of transformer oil have been conducted. Influence of individual sulfides on thermal stability of the brand VG transformer oil in electric field is studied by tension of 30 kV/cm at change of concentration of sulfides in range from 0 to

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11

Blanco, Jairo, Ruben Darío Leal, Jonathan Jacome, Johann F. Petit, Gabriel Ordoñez, and Víctor Barrera. "The influence of transformers, induction motors and fault resistance regarding propagation voltage sags." Ingeniería e Investigación 31, no. 2SUP (2011): 139–47. http://dx.doi.org/10.15446/ing.investig.v31n2sup.25225.

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This article presents an analysis of voltage sag propagation. The ATPDraw tool was selected for simulating the IEEE 34 node test feeder. It takes into account both voltage sags caused by electrical fault network, as well as voltage sag propagation characteristics caused by induction motor starting and transformer energising. The analysis was aimed at assessing the influence of transformer winding connections, the impedance of these transformers, lines and cables, summarising the effects on disturbance magnitude and phase. The study shows that the influence of an induction motor on voltage sag

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12

Guo, Yuxi. "Interpretability analysis in transformers based on attention visualization." Applied and Computational Engineering 76, no. 1 (2024): 92–102. http://dx.doi.org/10.54254/2755-2721/76/20240571.

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Self-attention is the core idea of the transformer, a kind of special structure for models to understand sentences and texts. Transformer is growing fast, but the model's internal unknowns are still out of control. In this work, the research visualizes self-attention and observes those self-attentions in some transformers. Through observation, there are five types of self-attention connections. The research classifies them as Parallel self-attention head, Radioactive self-attention head, Homogeneous self-attention head, X-type self-attention head, and Compound self-attention head. The Parallel

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13

Setijasa, Hery. "PENGUJIAN JAM VEKTOR HUBUNGAN ZIG-ZAG TRANSFORMATOR DAYA TIGA FASA 3x50 VA 220 V." Orbith: Majalah Ilmiah Pengembangan Rekayasa dan Sosial 18, no. 3 (2023): 232–36. https://doi.org/10.32497/orbith.v18i3.4367.

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Praktikum transformator 3 fasa dalam Mata Kuliah Teknik Tenaga Listrik (TTL) di Jurusan Teknik Elektro POLINES diselenggarakan untuk hubungan kumparan primer dan sekunder dalam konfigurasi segitiga-segitiga, bintang-bintang, segitiga-bintang, bintang-segitiga dengan jam grup vektor yang hanya terbatas pada jam-jam tertentu, dan belum sampai pada 12 jenis jam vektor grup. Disamping itu belum bisa dilakukan praktikum transformator 3 fasa dalam konfigurasi zig-zag, karena belum tersedia transformator yang memiliki tiga belitan. Target khusus dari penelitian ini yaitu menghasilkan rekomendasi untu

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14

Zinovkin, Volodymyr, and Andrii Tretiakov. "Study of phase reactances of special-purpose transformers during diagnostics of the excitation system of the electromagnetic scattering field." Bulletin of the National Technical University "KhPI". Series: Energy: Reliability and Energy Efficiency, no. 1(10) (July 9, 2025): 23–30. https://doi.org/10.20998/eree.2025.1(10).333967.

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The study of phase reactances of special-purpose transformers was conducted for the diagnostics of electromagnetic scattering excitation systems. Special attention is paid to assessing the technical condition of power transformers that supply energy-intensive technological complexes, as the current and voltage in them change according to complex periodic laws, leading to asymmetrical modes and accidents. To improve the reliability of transformer equipment, there is a need to develop specialized microprocessor and software tools for automated analysis and prevention of failures. Accident analys

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15

Kersting, W. H., W. H. Phillips, and W. Carr. "A new approach to modeling three-phase transformer connections." IEEE Transactions on Industry Applications 35, no. 1 (1999): 169–75. http://dx.doi.org/10.1109/28.740861.

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16

Tabrez, M., P. K. Sadhu, and A. Iqbal. "A Novel Three Phase to Seven Phase Conversion Technique Using Transformer Winding Connections." Engineering, Technology & Applied Science Research 7, no. 5 (2017): 1953–61. http://dx.doi.org/10.48084/etasr.1190.

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This paper proposes a novel multiphase transformer connection scheme which converts three phase balanced AC input to seven phase balanced AC output. Generalized theory to convert a three phase utility supply into any number of phases is presented. Based on the proposed generalized principle, a three phase to seven phase power converting transformer design is presented with connection scheme, analysis and simulation and experimental results of the proposed three phase to seven phase conversion transformer. The proposed transformer in this paper is analyzed and compared with the connection schem

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17

Zhang, Jianping, Yizhan Huang, Zhuoer Xu, Weibin Wu, and Michael R. Lyu. "Improving the Adversarial Transferability of Vision Transformers with Virtual Dense Connection." Proceedings of the AAAI Conference on Artificial Intelligence 38, no. 7 (2024): 7133–41. http://dx.doi.org/10.1609/aaai.v38i7.28541.

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With the great achievement of vision transformers (ViTs), transformer-based approaches have become the new paradigm for solving various computer vision tasks. However, recent research shows that similar to convolutional neural networks (CNNs), ViTs are still vulnerable to adversarial attacks. To explore the shared deficiency of models with different structures, researchers begin to analyze the cross-structure adversarial transferability, which is still under-explored. Therefore, in this work, we focus on the ViT attacks to improve the cross-structure transferability between the transformer-bas

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Yunas, Jumril, and Yeop Majlis Burhanuddin. "Microfabrication of Sandwich Micro-Transformers." Advanced Materials Research 314-316 (August 2011): 1836–40. http://dx.doi.org/10.4028/www.scientific.net/amr.314-316.1836.

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A new planar micro-transformer having sandwich spiral coil structure is fabricated using MEMS micro-fabrication technique. Stack interwinding coil is designed to achieve high coupling and higher winding number at relatively small coil area. In this work, stack sandwich interwinding coil structure is fabricated by bonding the substrates of the coil at connection pads using conductive epoxy material. This method replaces the use of conventional via connections that cause the most problem of current conductance in planar structures. The inductance of fabricated coil are measured at wide range of

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19

Novais, I. F., A. A. P. Junior, and S. F. P. Silva. "Modeling Three-Phase Transformers." Energies and Quality Journal 1 (June 2019): 60–65. http://dx.doi.org/10.24084/eqj19.233.

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Transformers in electric power systems are of great importance, with significant effects on the distribution of electric energy. The modeling of this machine, considering the various usable connections, requires a more detailed analysis for better results. Thus, the objective of this work is to propose a three-phase transformer model including the neutral in the admittance matrices, the ground impedance, taps settings and also the magnetizing branch. Key words Three-phase transformers modeling, ground impedance, magnetizing branch, admittance matrix

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Junejo, A. K., M. A. Koondhar, M. A. Memon, I. A. Channa, and S. A. A. S. Bukhari. "Classification of Voltage Sag Propagation under Double Line to Ground Fault on a Low Voltage Distribution Power Network." Engineering, Technology & Applied Science Research 11, no. 2 (2021): 6949–55. http://dx.doi.org/10.48084/etasr.4021.

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The key issue of the voltage-sag propagation on the different types of winding connections for the low voltage transformer in the distribution power network is considered in this study. The issues of voltage sag propagation depend upon the type of asymmetrical fault and the connection of the transformer windings. In this paper, the double line to ground fault is adopted for the voltage sag characterization. The depiction of the sage propagation is an outcome of the zero sequence components. Voltage sag propagation detection can be used to improve the power quality of the system. The obtained r

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AL Qurri, Ahmed, and Mohamed Almekkawy. "Improved UNetwith Attention for Medical Image Segmentation." Sensors 23, no. 20 (2023): 8589. http://dx.doi.org/10.3390/s23208589.

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Medical image segmentation is crucial for medical image processing and the development of computer-aided diagnostics. In recent years, deep Convolutional Neural Networks (CNNs) have been widely adopted for medical image segmentation and have achieved significant success. UNet, which is based on CNNs, is the mainstream method used for medical image segmentation. However, its performance suffers owing to its inability to capture long-range dependencies. Transformers were initially designed for Natural Language Processing (NLP), and sequence-to-sequence applications have demonstrated the ability

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Katran, Lamyaa Fahem, Ebtesam N. AlShemmary, and Waleed A. M. Al-Jawher. "A Review of Transformer Networks in MRI Image Classification." Al-Furat Journal of Innovations in Electronics and Computer Engineering 3, no. 2 (2024): 148–62. http://dx.doi.org/10.46649/fjiece.v3.2.12a.21.5.2024.

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The urgent need to improve the efficiency and precision of analyzing images in the field of magnetic resonance imaging (MRI) has led to the rise of transformer networks, as a groundbreaking solution. This review delves deeply into how transformer networksre used in classifying MRI images summarizing studies to showcase the progress made and challenges faced in this evolving area. With their abilities transformers excel at analyzing MRI images by highlighting both details and functional complexities while effectively capturing both global and local nuances using their advanced handling of long

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Wang, Haonan, Peng Cao, Jiaqi Wang, and Osmar R. Zaiane. "UCTransNet: Rethinking the Skip Connections in U-Net from a Channel-Wise Perspective with Transformer." Proceedings of the AAAI Conference on Artificial Intelligence 36, no. 3 (2022): 2441–49. http://dx.doi.org/10.1609/aaai.v36i3.20144.

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Most recent semantic segmentation methods adopt a U-Net framework with an encoder-decoder architecture. It is still challenging for U-Net with a simple skip connection scheme to model the global multi-scale context: 1) Not each skip connection setting is effective due to the issue of incompatible feature sets of encoder and decoder stage, even some skip connection negatively influence the segmentation performance; 2) The original U-Net is worse than the one without any skip connection on some datasets. Based on our findings, we propose a new segmentation framework, named UCTransNet (with a pro

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Lansberg, A. A., A. V. Vinogradov, and A. V. Vinogradova. "The structure of the park of power transformers with a higher voltage of 6-10 Kv on the example of the electric grid organization of the branch of pjsc «Rosseti center»-«Orelenergo», serving rural electric networks." Power engineering: research, equipment, technology 23, no. 5 (2022): 34–45. http://dx.doi.org/10.30724/1998-9903-2021-23-5-34-45.

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THE PURPOSE. Evaluation of the power transformer fleet 6-10/0,23-0,4 kV on the example of a branch of PJSC «Rosseti Center»-«Orelenergo».METHODS. In the work, based on the database of the branch of PJSC «Rosseti Center»-«Orelenergo», an analysis was made of the fleet of power transformers with a higher voltage of 6-10 kV in terms of their number, circuits and groups of connection of windings, rated power, terms of service, as well as energy efficiency classes, taking into account the current standards of the technical organization of PJSC «Rosseti».RESULTS. According to the results of the stud

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Abdelhafiz Zeiada, Ngu Eng Eng, and Moataz Saad Balla. "Multiple three-phase induction motors connected to a zigzag transformer." Maejo International Journal of Energy and Environmental Communication 3, no. 1 (2021): 8–14. http://dx.doi.org/10.54279/mijeec.v3i1.245075.

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Many experiments have been conducted in this research work which is (i) connecting a zigzag transformer with an induction motor, (ii) connecting a zigzag transformer with multiple induction motors, and (iii) connecting multiple zigzag transformers with multiple induction motors. These experiments provide a thorough understanding of the sequence network connections under the single-phasing condition of a three-phase induction motor. Moreover, these experiments protect the three-phase induction motors from unbalancing voltage supply and allow the induction motor to start under unbalance voltage

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Rusch, R. J., and M. L. Good. "Wyes and wye nots of three-phase distribution transformer connections." IEEE Transactions on Industry Applications 26, no. 4 (1990): 683–88. http://dx.doi.org/10.1109/28.55994.

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Mohammad, Enas, Fatima Khan, Hadeel Bassel, Atif Iqbal, and Ahmed Riyaz. "Comparative analysis of three-phase to five-phase transformer connections." Australian Journal of Electrical and Electronics Engineering 14, no. 1-2 (2017): 20–29. http://dx.doi.org/10.1080/1448837x.2018.1437678.

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Samimi, Mohammad Hamed, Amir Abbas Shayegani Akmal, Hossein Mohseni, and Stefan Tenbohlen. "Detection of transformer mechanical deformations by comparing different FRA connections." International Journal of Electrical Power & Energy Systems 86 (March 2017): 53–60. http://dx.doi.org/10.1016/j.ijepes.2016.09.007.

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Musthofa, Musthofa. "Sistem Monitoring Online Real Time Beban Unbalance dan Overload Trafo Distribusi di PT PLN (Persero)." Energi & Kelistrikan 12, no. 2 (2020): 156–64. http://dx.doi.org/10.33322/energi.v12i2.1163.

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Public and government demands for PLN to serve all people to enjoy electricity with a target of 100% Electrification Ratio. To fulfill the Electrification Ratio, of course, it is necessary to increase the capacity of the distribution transformer with the addition of an insert transformer and a new transformer. So that the increasing number of connections to customers' homes or buildings will result in overload or unbalance loading of the distribution transformer. The problem is the number of transformers 3,938 units at PLN UP3 Padang with limited load measuring officers only 70 teams, there is

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Zhao, Can, Tao Wu, Jianlin Zhang, Zhiyong Xu, Meihui Li, and Dongxu Liu. "Siamese comparative transformer-based network for unsupervised landmark detection." PLOS ONE 19, no. 12 (2024): e0313518. https://doi.org/10.1371/journal.pone.0313518.

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Landmark detection is a common task that benefits downstream computer vision tasks. Current landmark detection algorithms often train a sophisticated image pose encoder by reconstructing the source image to identify landmarks. Although a well-trained encoder can effectively capture landmark information through image reconstruction, it overlooks the semantic relationships between landmarks. This contradicts the goal of achieving semantic representations in landmark detection tasks. To address these challenges, we introduce a novel Siamese comparative transformer-based network that strengthens t

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Chen, Shuo, Ke Xu, Xinghao Jiang, and Tanfeng Sun. "Pyramid Spatial-Temporal Graph Transformer for Skeleton-Based Action Recognition." Applied Sciences 12, no. 18 (2022): 9229. http://dx.doi.org/10.3390/app12189229.

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Although graph convolutional networks (GCNs) have shown their demonstrated ability in skeleton-based action recognition, both the spatial and the temporal connections rely too much on the predefined skeleton graph, which imposes a fixed prior knowledge for the aggregation of high-level semantic information via the graph-based convolution. Some previous GCN-based works introduced dynamic topology (vertex connection relationships) to capture flexible spatial correlations from different actions. Then, the local relationships from both the spatial and temporal domains can be captured by diverse GC

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Liao, Zhihao, Neng Fan, and Kai Xu. "Swin Transformer Assisted Prior Attention Network for Medical Image Segmentation." Applied Sciences 12, no. 9 (2022): 4735. http://dx.doi.org/10.3390/app12094735.

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Transformer complements convolutional neural network (CNN) has achieved better performance than improved CNN-based methods. Specially, Transformer is utilized to be combined with U-shaped structure, skip-connections, encoder, and even them all together. However, the intermediate supervision network based on the coarse-to-fine strategy has not been combined with Transformer to improve the generalization of CNN-based methods. In this paper, we propose Swin-PANet, which is applying a window-based self-attention mechanism by Swin Transformer in the intermediate supervision network, called prior at

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Kamarposhti, Mehrdad Ahmadi, and Ashkan Abyar Hosseini. "Modified approach for harmonic reduction in three-phase to seven-phase using transformer winding connections." International Journal of Electrical and Computer Engineering (IJECE) 9, no. 3 (2019): 1496. http://dx.doi.org/10.11591/ijece.v9i3.pp1496-1505.

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Three phase supply is available in the generating station or grid, were as seven phase supply is required for many industrial applications such as, aerospace, railway and automobile applications. There are different methods in which we can convert 3 to 7 phase using 24-Pulse Converter, Carrier Based PWM Technique, multilevel converter and Multiphase Transformer. The above said methods which are more complicated to design for higher ratings or a pure sine wave will not be obtained or harmonics will be more. For Multiphase power transmission system multiphase transformers are needed. In the mult

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Antun Mikulecky. "TRANSFORMER BUSHINGS – FAILURE CASE STUDIES." Journal of Energy - Energija 61, no. 1-4 (2022): 170–80. http://dx.doi.org/10.37798/2012611-4249.

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Relationship between bushing failure and transformer failure is discussed and, in regard of that, two bushing failure types are recognized: incipient bushing failure that does not result in transformer damage and terminal bushing failure having transformer failure as a consequence. It can be seen, that without applying the diagnostics, all bushing failures are terminal. Thirteen bushing failures have been analyzed regarding their cause, failure mechanism and consequences. In that sense, the ability and limitation of off line and on line diagnostics are discussed and some improvements are propo

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Xuan, Ping, Peiru Li, Hui Cui, Meng Wang, Toshiya Nakaguchi, and Tiangang Zhang. "Learning Multi-Types of Neighbor Node Attributes and Semantics by Heterogeneous Graph Transformer and Multi-View Attention for Drug-Related Side-Effect Prediction." Molecules 28, no. 18 (2023): 6544. http://dx.doi.org/10.3390/molecules28186544.

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Since side-effects of drugs are one of the primary reasons for their failure in clinical trials, predicting their side-effects can help reduce drug development costs. We proposed a method based on heterogeneous graph transformer and capsule networks for side-effect-drug-association prediction (TCSD). The method encodes and integrates attributes from multiple types of neighbor nodes, connection semantics, and multi-view pairwise information. In each drug-side-effect heterogeneous graph, a target node has two types of neighbor nodes, the drug nodes and the side-effect ones. We proposed a new het

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Chen, Yu, Ming Yin, Yu Li, and Qian Cai. "CSU-Net: A CNN-Transformer Parallel Network for Multimodal Brain Tumour Segmentation." Electronics 11, no. 14 (2022): 2226. http://dx.doi.org/10.3390/electronics11142226.

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Medical image segmentation techniques are vital to medical image processing and analysis. Considering the significant clinical applications of brain tumour image segmentation, it represents a focal point of medical image segmentation research. Most of the work in recent times has been centred on Convolutional Neural Networks (CNN) and Transformers. However, CNN has some deficiencies in modelling long-distance information transfer and contextual processing information, while Transformer is relatively weak in acquiring local information. To overcome the above defects, we propose a novel segmenta

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Shah, Ashesh Mukeshbhai, and Bhavesh Bhalja. "A New Adaptive Differential Protection Scheme for Tap Changing Power Transformer." International Journal of Emerging Electric Power Systems 16, no. 4 (2015): 339–48. http://dx.doi.org/10.1515/ijeeps-2015-0005.

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Abstract This paper presents a new adaptive differential protection scheme which efficiently adapts the change in tap position of a power transformer. The proposed scheme is based on analytical derivation of pick-up and slope of the differential relay characteristic. By acquiring information such as rating & connection of CTs and present tap position as input, the proposed scheme enhances sensitivity of differential relay during internal faults. This is accomplished either by decreasing pick-up and/or adjusting slope of the differential characteristic of the relay in case of change in tap

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Mehrdad, Ahmadi Kamarposhti, and Abyar Hosseyni Ashkan. "Modified approach for harmonic reduction in three-phase to seven-phase using transformer winding connections." International Journal of Electrical and Computer Engineering (IJECE) 9, no. 3 (2019): 1496–505. https://doi.org/10.11591/ijece.v9i3.pp1496-1505.

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Three phase supply is available in the generating station or grid, were as seven phase supply is required for many industrial applications such as, aerospace, railway and automobile applications. There are different methods in which we can convert 3 to 7 phase using 24-Pulse Converter, Carrier Based PWM Technique, multilevel converter and Multiphase Transformer. The above said methods which are more complicated to design for higher ratings or a pure sine wave will not be obtained or harmonics will be more. For Multiphase power transmission system multiphase transformers are needed. In the mult

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Chen, Min, Qiangjiang Zhang, Xuming Ge, et al. "A Full-Scale Connected CNN–Transformer Network for Remote Sensing Image Change Detection." Remote Sensing 15, no. 22 (2023): 5383. http://dx.doi.org/10.3390/rs15225383.

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Recent studies have introduced transformer modules into convolutional neural networks (CNNs) to solve the inherent limitations of CNNs in global modeling and have achieved impressive performance. However, some challenges have yet to be addressed: first, networks with simple connections between the CNN and transformer perform poorly in small change areas; second, networks that only use transformer structures are prone to attaining coarse detection results and excessively generalizing feature boundaries. In addition, the methods of fusing the CNN and transformer have the issue of a unilateral fl

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Xu, Senyan, Zhijing Sun, Mingchen Zhong, et al. "Motion-adaptive Transformer for Event-based Image Deblurring." Proceedings of the AAAI Conference on Artificial Intelligence 39, no. 9 (2025): 8942–50. https://doi.org/10.1609/aaai.v39i9.32967.

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Event cameras, which capture pixel-level brightness changes asynchronously, provide rich motion information that is often missed during traditional frame-based camera exposures, thereby offering fresh perspectives for motion deblurring. Although current approaches incorporate event intensity, they neglect essential spatial motion information. Unlike their CNN architectures, Transformers excel in modeling long-range dependencies but struggle with establishing relevant non-local connections in sparse events and fail to highlight significant interactions in dense images. To address these limitati

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Banaszak, Szymon, Konstanty Marek Gawrylczyk, and Katarzyna Trela. "Frequency Response Modelling of Transformer Windings Connected in Parallel." Energies 13, no. 6 (2020): 1395. http://dx.doi.org/10.3390/en13061395.

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This paper describes the approach to the frequency response modelling of transformer windings consisting of coils connected in parallel. At present, computer models are intensively developed with the aim of simulating the influence of faults on the frequency response of the active part of power transformers. Frequency response analysis (FRA) is one of the standard methods used for the assessment of the mechanical condition of a transformer’s windings and core. The interpretation of the FRA results is crucial in the diagnostics of the active part of the transformer. Proper simulations of the FR

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Aung, M. T., and J. V. Milanovic. "The Influence of Transformer Winding Connections on the Propagation of Voltage Sags." IEEE Transactions on Power Delivery 21, no. 1 (2006): 262–69. http://dx.doi.org/10.1109/tpwrd.2005.855446.

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KARKOSINSKI, Dariusz. "Design and Implementation Errors in Cogeneration Units." AUTOMATYKA, ELEKTRYKA, ZAKLOCENIA 15, no. 3(53)2024 (2024): 28–40. https://doi.org/10.17274/aez.2024.57.02.

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The influence of design and construction errors in cogeneration units in particular the connection of the neutral points of the generator and transformer windings star on the occurrence of disturbances in their operation and failures have been discussed. The specific development of the arc fault at the block circuit breaker connections to the busbars and the circuit breaker damage have been analyzed. Moreover, an example of the occurrence and development of a busbar failure resulting from design and construction errors during the construction of the cogeneration unit has been explained.

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Dr., Emad Al-Mahdawi. "Solid-State Transformers: A Game-Changer for Off-Grid and Emergency Power Systems." International Journal of Recent Technology and Engineering (IJRTE) 14, no. 1 (2025): 23–30. https://doi.org/10.35940/ijrte.F8216.14010525.

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<strong>Abstract:</strong> This paper compares Solid-State Transformers with traditional low-frequency transformers to consider their suitability for temporary power infrastructure in emergency response scenarios and remote locations. While current solid-state transformers do not offer significant weight reductions or cost advantages over low-frequency transformers, they provide approximately 20% volume reduction and superior integration capabilities for diverse power sources and loads. Despite higher initial costs and maintenance challenges, solid-state transformers' ability to accommodate re

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Dr., Emad Al-Mahdawi. "Solid-State Transformers: A Game-Changer for Off Grid and Emergency Power Systems." International Journal of Recent Technology and Engineering (IJRTE) 14, no. 1 (2025): 23–30. https://doi.org/10.35940/ijrte.F8216.14010525/.

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<strong>Abstract: </strong>This paper compares Solid-State Transformers with traditional low-frequency transformers to consider their suitability for temporary power infrastructure in emergency response scenarios and remote locations. While current solid-state transformers do not offer significant weight reductions or cost advantages over low-frequency transformers, they provide approximately 20% volume reduction and superior integration capabilities for diverse power sources and loads. Despite higher initial costs and maintenance challenges, solid-state transformers' ability to accommodate re

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Maklakov, Alexander S., Tao Jing, Andrey A. Radionov, Vadim R. Gasiyarov, and Tatyana A. Lisovskaya. "Finding the Best Programmable PWM Pattern for Three-Level Active Front-Ends at 18-Pulse Connection." Machines 9, no. 7 (2021): 127. http://dx.doi.org/10.3390/machines9070127.

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The existing publications on the analysis of power quality indicators in modern electric power supply systems are void of a comprehensive approach to improving these indicators in power systems by implementing multipulse connections. To the authors’ knowledge, this paper is the first to analyze current harmonic distortions in an 18-pulse connection of three-level active front-ends (AFE) featuring a programmed PWM. Raw data were obtained from, and current quality was analyzed for the power circuit of the main electric drive actuating the rolls in the rolling stand of a plate mill. The key featu

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Al-Mahdawi, Dr Emad, and Anthony Butler. "Solid-State Transformers: A Game-Changer for Off-Grid and Emergency Power Systems." International Journal of Recent Technology and Engineering (IJRTE) 14, no. 1 (2025): 23–30. https://doi.org/10.35940/ijrte.f8216.14010525.

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This paper compares Solid-State Transformers with traditional low-frequency transformers to consider their suitability for temporary power infrastructure in emergency response scenarios and remote locations. While current solid-state transformers do not offer significant weight reductions or cost advantages over low-frequency transformers, they provide approximately 20 Parsant volume reduction and superior integration capabilities for diverse power sources and loads. Despite higher initial costs and maintenance challenges, solid-state transformers ability to accommodate renewable energy source

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Liu, Jie, Songren Mao, and Liangrui Pan. "Attention-Based Two-Branch Hybrid Fusion Network for Medical Image Segmentation." Applied Sciences 14, no. 10 (2024): 4073. http://dx.doi.org/10.3390/app14104073.

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Accurate segmentation of medical images is vital for disease detection and treatment. Convolutional Neural Networks (CNN) and Transformer models are widely used in medical image segmentation due to their exceptional capabilities in image recognition and segmentation. However, CNNs often lack an understanding of the global context and may lose spatial details of the target, while Transformers struggle with local information processing, leading to reduced geometric detail of the target. To address these issues, this research presents a Global-Local Fusion network model (GLFUnet) based on the U-N

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Li, Yu Xia. "Methods of Getting Zero Sequence Current in a Single-Phase-to-Ground Fault." Advanced Materials Research 614-615 (December 2012): 891–94. http://dx.doi.org/10.4028/www.scientific.net/amr.614-615.891.

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After a single-phase-to ground fault, fault voltage and current information should be sampled accurately for automatic equipments to detect the fault line. And zero sequence current is the very key element to detect the fault line after an earth fault happens. The widely used methods of getting zero sequence current are in details described. The common methods are by zoro sequence current transformers, by wye connections of three CTs, and by zero-sequence current transducer. A new method by magnetic field induction and the structure of magnetic induction device are introduced, as well as a new

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Minh, Tran Vu, Nguyen Thi Anh, and Tran Thanh Tung. "Torque Measurement System Design for Step Motor 23HS30-3004S." Engineering, Technology & Applied Science Research 15, no. 1 (2025): 19073–77. https://doi.org/10.48084/etasr.9160.

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This article describes the methodology employed in the development of a prototype system designed for torque measurement. The system consists of two components. Α rotating component, the transmitter, and a fixed component, the receiver. The torque data, obtained from a strain gauge bridge, are processed and transmitted to the receiver through a transformer-operated device. Rotary transformers are deployed to supply power to electronics that are mounted on shafts. This ensures continuous and stable data transmission without requiring physical connections. Additionally, the accuracy of the desig

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