Results 71 to 80 of about 6,201 (230)

Forecasting Flashover Parameters of Polymeric Insulators under Contaminated Conditions Using the Machine Learning Technique

Energies, 2020
There is a vital need to understand the flashover process of polymeric insulators for safe and reliable power system operation. This paper provides a rigorous investigation of forecasting the flashover parameters of High Temperature Vulcanized (HTV ...
Arshad, Jawad Ahmad, Ahsen Tahir, Brian G. Stewart, Azam Nekahi   +4 more
doaj   +1 more source

The synergistic effect of micro structure/nanofiller/superhydrophobicity on the surface flashover

High Voltage, 2022
The surface flashover is affected by many factors, such as surface roughness, nanofillers and chemical functional groups. In this research study, polyamide mesh was utilised as a scaffold to systematically study the synergistic effect of micro structure ...
Qing Xie, Guoshuang Ma, Peng Wang, Xuesong Zhang, Jiyuan Yan, Zhaochen Liu, Fangcheng Lü   +6 more
doaj   +1 more source

Electrical Circuit Flashover Model of Polluted Insulators under AC Voltage Based on the Arc Root Voltage Gradient Criterion [PDF]

, 2012
In order to study the flashover mechanism of polluted insulators under AC voltage, a new arc propagation criterion which is based on an arc root voltage gradient is proposed.
Alston, Chilong Jiang, Gopal, Hampton, Li, Markus Zahn, Nacke, Obenaus, Qing Yang, Rizk, Rui Wang, Wenxia Sima, Wilkins, Xing Lan   +13 more
core   +3 more sources

A Scoping Review and Bibliometric Analysis on Smart Firefighting in Buildings and Infrastructures

Fire and Materials, Volume 50, Issue 2, Page 145-173, March 2026.
ABSTRACT Smart Firefighting is a concept that has emerged within the fire engineering and fire science disciplines in recent years. It can enable informed decision making and improved fire safety. However, its scope, definition, outcomes, and value to emergency management remain unclear. To investigate this, a scoping review and a bibliometric analysis
José Antonio Morales Mere, Nils Johansson, Enrico Ronchi   +2 more
wiley   +1 more source

Lightning‐caused disturbance frequency and severity varies with topography in an Afromontane forest

Journal of Ecology, Volume 114, Issue 3, March 2026.
The results indicate that lightning disturbance severity differs within and among sites, potentially mediated by differences in lightning tolerance among tree species, and provide preliminary support for the hypothesis that disturbance severity declines with disturbance frequency. Abstract Lightning is an important agent of tropical tree mortality, but
Evan M. Gora, Alain Senghor K. Ngute, Rodrigue Batumike, Aida Cuni‐Sanchez, Gerard Imani, Beth A. Kaplin, Drew Bantlin, Robert Bitariho, Bianca Zoletto, Nikolaos Petridis, Douglas Sheil, Martin J. P. Sullivan   +11 more
wiley   +1 more source

Spectral Characteristics and Evolution Mechanism of Silicon Rubber Surface Discharge Under Thermal Ageing Condition

High Voltage, Volume 11, Issue 1, Page 192-200, February 2026.
ABSTRACT Surface discharge is a typical fault type in electric power equipment. High temperature in long‐term operation can easily lead to ageing of materials, resulting in changes in surface characteristics and surface discharge faults. In this paper, a method of surface discharge identification of silicon rubber (SiR) based on spectral detection ...
Yanze Han, Liankang Zhang, Beibei Sun, Lu Liu, Guochang Li, Shengtao Li, Yanhui Wei   +6 more
wiley   +1 more source

Effect of AC Pre-Charging of Epoxy Insulator on Flashover Properties in Eco-Friendly Binary Gas Mixtures

Energies
Metal particles and surface charge accumulation are considered the key factors that could trigger unexpected flashovers of insulators equipped in gas-insulated switchgear (GIS).
Jian Guan, Guohui Han, Qifeng Shang, Xiaohu Qi, Zhiying Wang, Yu Gao   +5 more
doaj   +1 more source

Insulation strength of CF3I-CO2 gas mixtures as an alternative to SF6 in MV switch disconnectors [PDF]

, 2018
This paper evaluates the insulation performance of gas mixtures of trifluoroiodomethane and carbon dioxide (CF3I-CO2) in a medium voltage switch disconnector.
Griffith, H., Haddad, Abderrahmane, Widger, Phillip   +2 more
core   +2 more sources

Study on the Impact of Contamination Containing High Proportions of Metals on the AC Flashover Characteristics of Insulators

High Voltage, Volume 11, Issue 1, Page 264-273, February 2026.
ABSTRACT In heavy metal industrial areas, the issue of insulation flashover caused by metal contamination on the external insulation of transmission lines has become increasingly prominent. This paper investigates the U160B/155 porcelain insulator, examining how iron, copper and zinc metal contaminations affect its AC flashover characteristics ...
Zhijin Zhang, Dong Zeng, Bingbing Wang, Xingliang Jiang, Jianlin Hu, Qin Hu   +5 more
wiley   +1 more source

Dielectric Properties and Insulation Performance of Nanocellulose Composite Films Enhanced by Hyperbranched Boron Nitride

High Voltage, Volume 11, Issue 1, Page 179-191, February 2026.
ABSTRACT Boron nitride (BN), characterised by its wide band gap and robust dielectric properties, has emerged as a promising filler for polymer‐based dielectric composites. Nevertheless, its practical implementation in polymer matrices has been hindered by poor dispersibility and inadequate interfacial adhesion. This study addresses these challenges by
Yalin Zhao, Shen Zhao, Zhicong Miao, Yunqi Xing, Hongkun Wang, Rongjin Huang, Guangtong Ma   +6 more
wiley   +1 more source