Results 51 to 60 of about 6,330 (207)

Seismic evaluation of ±800 kV UHVDC disconnect switch by shake table test

The Journal of Engineering, 2019
Disconnect switches, the widely used electrical substation apparatuses, however, were severely damaged in several earthquakes, causing huge economic losses.
Jiayi Wen, Qiang Xie
doaj   +1 more source

PowerGPT‐R1: Vision‐Language Reinforcement Fine‐Tuning With Verifiable Reward for Power Inspection

High Voltage, EarlyView.
ABSTRACT Vision‐driven intelligent power inspection systems have long faced the challenge of scarce high‐quality datasets in specialised domains, leading to limited performance of traditional deep learning methods (e.g., Faster‐RCNN) in few‐shot learning scenarios. Recent breakthroughs in language models, particularly the open‐source DeepSeek‐R1 model,
Yangyang Zhong, Pengxin Luo, Yunfeng Yan, Jun Feng, Shixiang Tang, Weizhen He, Yiheng Deng, Yi Chen, Yuhao Zhou, Qi Li, Xianbo Wang, Fushuan Wen, Donglian Qi   +12 more
wiley   +1 more source

Partial discharges measurement by UHF method [PDF]

Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2020
The unconventional UHF (Ultra High Frequency) method of measuring partial discharges (PD) is based on measuring electromagnetic waves (EM) in the UHF frequency band (300-3000) MHz, using appropriate antennas.
Malešević Nevena, Žarković Mileta, Ilić Denis, Jovanović Đorđe   +3 more
doaj  

Research on Embodied Intelligence Technology for Electric Power Equipment Based on Large‐Scale Pre‐Trained Models

High Voltage, EarlyView.
ABSTRACT With the development of electric power artificial intelligence (AI) technology, many complicated challenges emerged during application. Traditional AI algorithms work well in specialised tasks such as detection and classification. However, they are unlikely to solve general problems.
Yuanpeng Tan, Rui Song, Ankai Zhang, Wenhao Mo, Wenjin Ji   +4 more
wiley   +1 more source

Switchgear for partial grounding neutral of 6- 10 kv networks [PDF]

, 2017
В статье рассмотрены варианты заземления нейтрали сетей 6–35 кВ. Разработана конструкция шкафа для резистивного заземления нейтрали сети 6–10 кВ в составе ячеек КРУ (шкаф частичного заземления нейтрали).
Приходько, М. Г., Куртикова, Е. Н., Добродей, А. О.   +2 more
core   +2 more sources

A Review and Prospect of Appearance Defect Detection Methods for High Voltage Equipment Based on Vision Large Models

High Voltage, EarlyView.
ABSTRACT High voltage equipment, as a core component of power systems, plays an indispensable role in ensuring the reliability of power supply through its safe and stable operation. Traditional visual defect detection for high voltage equipment, however, often relies on manual inspection and experience‐based judgement, which struggles to meet the ...
Zhenbing Zhao, Shuo Feng, Teng Ma, Chenkang Tang, Wenlong Liao, Yixuan Huang, Yongjie Zhai, Wenqing Zhao   +7 more
wiley   +1 more source

Machine Learning‐Assisted Development in Insulating Materials for High Voltage Applications

High Voltage, EarlyView.
ABSTRACT The advancement of power systems imposes increasingly stringent performance requirements on insulating materials, making the development of high‐performance insulating materials a critical challenge in the field of electrical engineering. Traditional material development relies heavily on empirical trial‐and‐error approaches, which are time ...
Yichen Ran, Yi Wang, Changheng Li, Jingyu Deng, Jian Wang, Haochen Zuo, Chen Zhao, Qian Wang, Yi Li, Song Xiao, Zhengyong Huang, Chao Wu, Zhonghui Shen, Kunming Shi, Fei Liu, Jie Chen, Jian Li, Xingyi Huang   +17 more
wiley   +1 more source

Logic controlled solid state switchgear [PDF]

, 1973
Logic controlled solid state circuit breakers and power transfer switches have been designed and built to demonstrate their use for 270 V dc power systems. This switchgear provides remote operation, automatic current level, and operates several orders of
Buchanan, E., Waddington, D.
core  

microRNA‐145‐5p regulates P‐glycoprotein and breast cancer resistance protein in primary human fetal brain endothelial cells

The Journal of Physiology, EarlyView.
Abstract figure legend Drug transporters P‐glycoprotein (P‐gp) and breast cancer resistance protein (BCRP) at the blood–brain barrier (BBB) protect the rapidly developing fetal brain. We investigated the role of microRNA‐145‐5p (miR‐145‐5p) microRNA (miRNA) in regulating these key transporters in primary human fetal brain endothelial cells in vitro. We
Phetcharawan Lye, Enrrico Bloise, Nikola Ivanovski, Lubna Nadeem, Christopher Casciaro, Stephen G. Matthews   +5 more
wiley   +1 more source

Comprehensive Structural Reliability Assessment When Choosing Switchgear Circuits for 35–220 kV Step-Up Substations

Energies
The basic requirements for the design of a switchgear for main 35–220 kV step-down substations are reliability and efficiency. Switchgear circuits are chosen depending on the number of supply and transit lines and transformers, the substation’s place in ...
Aleksandra V. Varganova, Aleksandr S. Irikhov, Anastasia A. Utesheva, Vadim R. Khramshin, Aleksandr S. Maklakov, Andrey A. Radionov   +5 more
doaj   +1 more source