Results 31 to 40 of about 6,358 (219)

Displacement Current and Surface Flashover [PDF]

, 2007
High-voltage vacuum insulator failure is generally due to surface flashover rather than insulator bulk breakdown. Vacuum surface flashover is widely believed to be initiated by a secondary electron emission avalanche along the vacuum-insulator interface.
G. J. Caporaso, Harris, J. R., Blackfield, D., Caporaso, G. J., Chen, Y. J., J. R. Harris, Y.-J. Chen, D. Blackfield   +7 more
core   +1 more source

External Insulation Performance under DC Voltages of Polluted Post Insulators for Power Stations in Rainy Weather: A Brief Review and Recent Progress

Energies
The discharge and flashover phenomenon of post insulators in rainy weather has not been given sufficient consideration; however, with the construction of ultra-high voltage power grids, the performance of the external insulation and the ability to ...
Yuxi Dong, Zili Wang, Mingguang Diao, Xi Wang, Yu Deng, Bin Cao, Ying Xu, Chuyan Zhang   +7 more
doaj   +1 more source

AC Flashover Performance of 10 kV Rod-Plane Air-Gapped Arresters under Rain Conditions

Energies, 2018
According to operational experience of power systems, the outdoor insulation strength can be reduced due to the effect of rain. Till now, little work has been done to investigate the flashover performance of air gapped arresters under rain conditions ...
Jiazheng Lu, Pengkang Xie, Jianping Hu, Zhenglong Jiang, Zhen Fang   +4 more
doaj   +1 more source

Development of Flame Retarded Battery Casings Using Glass Fiber‐Reinforced Epoxy Resin

Polymer Composites, EarlyView.
Development of flame retarded battery casings using glass fiber‐reinforced epoxy resin by exploiting the synergistic action of APP and TiO2 to promote the formation of a coherent ceramic‐phosphate char layer. ABSTRACT This study investigates the development of glass fiber‐reinforced epoxy resin composites with enhanced fire performance for application ...
Ákos Pomázi, Zsófia Kovács, Beáta Szolnoki, Gábor Szebényi, Andrea Toldy   +4 more
wiley   +1 more source

DC Flashover Dynamic Model of Post Insulator under Non-Uniform Pollution between Windward and Leeward Sides

Energies, 2019
Experience shows that under unidirectional wind or certain terrain, the surface of post insulators is non-uniformly polluted between windward and leeward sides, which affects the flashover characteristics.
Zhijin Zhang, Shenghuan Yang, Xingliang Jiang, Xinhan Qiao, Yingzhu Xiang, Dongdong Zhang   +5 more
doaj   +1 more source

Fire Testing and Hazard Assessment for Flame Retardant Polymer Composites

Safety Science and Technology, EarlyView.
Flame retardant polymer composites are now being evaluated with more than pass or fail flammability tests. Heat release, smoke, toxicity, and system‐level behavior are receiving more attention, and multi‐scale methods are being used to describe fire hazard under more realistic conditions.
Shuheng Wang, Min Yue, Junjie Ren, Fei Ren, Bin Zou, Xiaodong Qian, Ye‐Tang Pan, Congling Shi, Sheng Zhang   +8 more
wiley   +1 more source

Enhancing flashover strength along oil/pressboard interface using nanofluids

Alexandria Engineering Journal, 2020
One of the weakest paths for electrical discharge in power transformers is oil/pressboard interface. So, in this study it is aimed to enhance the flashover resistance of such interface through using the concept of nanofluids.
El-Sayed M. El-Refaie, Diaa-Eldin A. Mansour, M.K. Abd Elrahmen, Mohamed H. Abdo   +3 more
doaj   +1 more source

Atmospheric-pressure plasma jet deposition of bumpy coating improves polypropylene surface flashover performance in vacuum

, 2020
Polypropylene (PP) with low leakage current and high mechanical strength is a promising candidate for recyclable vacuum insulation applications, but its surface flashover voltage is low. Advantageously to widely used technologies such as fluorination and
Kong, Fei, Yan, Ping, Zhang, Cheng, Shao, Tao, Zhang, Shuai, Dong, Pan, Ostrikov, Kostya Ken, Cheng, Xian, Zhang, Penghao   +8 more
core   +1 more source

Predicting Flashover Occurrence using Surrogate Temperature Data

, 2021
Fire fighter fatalities and injuries in the U.S. remain too high and fire fighting too hazardous. Until now, fire fighters rely only on their experience to avoid life-threatening fire events, such as flashover.
Fu, Eugene Yujun, Tam, Wai Cheong, Cleary, Thomas, Leong, Hong Va, Reneke, Paul A, Wang, Jun, Ngai, Grace, Peacock, Richard   +7 more
core   +1 more source

Polyaniline as a dual flame retardant and electrostatic dissipative additive in polyethylene nanocomposites

Journal of Vinyl and Additive Technology, Volume 31, Issue 2, Page 339-355, March 2025.
Effecft of co‐doping polyaniline with phosphoric acid and phytic acid on the heat release rate of polyethylene. Abstract Polyolefins, such as polyethylene (PE), are highly flammable and electrically insulative, limiting their applicability. The study explored the flame‐retardancy and electrical conductivity of PE/polyaniline (PE/PANI) nanocomposites ...
Akeem Adisa, Joseph K. O. Asante, Vincent O. Ojijo, António B. Mapossa, Washington Mhike   +4 more
wiley   +1 more source