Results 111 to 120 of about 4,488,429 (243)

Study on the Power‐Frequency Arc Extinction Characteristics of Semi‐Closed Short‐Gap Device

High Voltage, EarlyView.
ABSTRACT Multi‐chamber arc‐extinguishing devices have a simple structure and excellent arc‐extinguishing performance; thus, they have attracted considerable attention as lightning protection devices. However, the structural parameters of different models of the aforementioned devices vary, leading to inconsistent protection levels; therefore, the arc ...
Yeqiang Deng, Caiwei Pan, Jintian Chen, Yu Wang, Lei Lan   +4 more
wiley   +1 more source

Lightning Impulse Ageing of HV Cable Insulation

, 2009
Lightning impulses can lead to accelerated ageing of extruded cables. Electrical behaviour of a dielectric material when experiencing a lightning impulse is different to that for DC or power frequency applied voltages.
Dao, N L, Swingler, S G, Lewin, P L
core   +1 more source

Computation of electromagnetic fields from lightning discharge

, 2014
Electromagnetic fields from lightning can couple to electrical systems and produce transient overvoltages, which can cause power and telecommunication outages and destruction of electronics.
Rajeev Thottappillil, Thottappillil, Rajeev,   +1 more
core   +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

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

Lightning attachment to power transmission lines

, 2012
The effect of lightning channel inclination on the attachment of lightning flashes to UHV transmission lines is investigated using a lightning strike model that takes into account the competing connecting leaders issued from different conductors.
Cooray, Vernon,, Takatoshi Shindo, Vernon Cooray, Shindo, T.   +3 more
core   +1 more source

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

CommTLC: An Alternative to Reduce the Attack Surface of HTLCs in Lightning Networks

IET Blockchain
The Payment Channel Network is widely recognized as one of the most effective solutions for handling off‐chain transactions and addressing blockchain scalability challenges.
Prerna Arote, Joy Kuri
doaj   +1 more source

Quantitative Analysis of Centralization in the Bitcoin Lightning Network Through Centrality Metrics

IEEE Access
The Bitcoin Lightning Network, a Layer-2 more scalable solution for the Bitcoin blockchain, has emerged to address the scalability challenges faced by the Bitcoin network.
Laura Atmanaviciute, Tomas Vanagas, Saulius Masteika   +2 more
doaj   +1 more source

Research Progress in Treeing Phenomena of Polypropylene Insulation Materials

High Voltage, EarlyView.
ABSTRACT Polypropylene (PP) is increasingly utilised in high‐voltage systems due to its superior electrical and thermal properties. However, electrical treeing poses a significant threat to its long‐term reliability, potentially leading to insulation failure.
Boxue Du, Heyu Wang, Zhonglei Li
wiley   +1 more source