Results 51 to 60 of about 4,473,292 (172)

Anode-Initiated Surface Flashover [PDF]

, 1979
Either of two distinctively different surface flashover mechanisms may lead to the electrical breakdown of an insulator under high voltage stress in vacuum.
Anderson, R. A.
core  

Increased surface flashover voltage in microfabricated devices [PDF]

, 2013
With the demand for improved performance in microfabricated devices, the necessity to apply greater electric fields and voltages becomes evident. When operating in vacuum, the voltage is typically limited by surface flashover forming along the surface of
W. K. Hensinger, Winfried Hensinger (4461820), C. J. Mellor, R C Sterling (16163444), C J Mellor (16163450), R. C. Sterling, M D Hughes (16163447), M. D. Hughes   +7 more
core   +1 more source

Physics of pulsed unipolar dielectric surface flashover at atmospheric conditions [PDF]

, 2006
Dielectric surface flashover along insulators in atmospheric conditions has been empirically characterized over the years. However, the underlying physics involved in atmospheric flashover has yet to be extensively analyzed and understood with variable ...
Morales, Kim
core   +2 more sources

Mechanism on improved surface flashover performances in vacuum of epoxy resin using fluorocarbon plasma treatment

High Voltage, 2022
To improve the insulation, strength of materials is a permanent topic in the fields of high voltage and insulation, and surface insulation is one of the difficulties. Research shows that the surface fluorination by a non‐equilibrium plasma is a promising
Sile Chen, Tao Cheng, Zhaoquan Chen, Guanjun Zhang   +3 more
doaj   +1 more source

Conductivity Analysis and Thermoelectric Behaviour of Larch Standing Trees Under Lightning Currents: Role of Moisture Distribution and Carrier Motion

High Voltage, EarlyView.
ABSTRACT The direct effects of lightning strikes on forest combustibles form the foundation for predicting lightning‐induced forest fires. Accurate assessment of lightning impact is hindered by limited knowledge of the conduction characteristics of standing larch trees.
Jinru Sun, Xiaomeng Liu, Shu Li, Duanzhou Peng, Xueling Yao, Xiaodong Liu   +5 more
wiley   +1 more source

Study on Raindrop Dynamic Behaviour and Its Impact on Insulator Flashover Characteristics Under Airflow Synergy

High Voltage, EarlyView.
ABSTRACT The synergistic effect of airflow on rainfall behaviour significantly impacts the flashover probability of insulators. This study combines experiments and simulations to investigate the influence of raindrop dynamic behaviour, shed structures and rainfall conditions on flashover characteristics under airflow conditions.
Keqi Huang, Xueqin Zhang, Song Xiao, Lirui Zhang, Yujun Guo, Guangning Wu   +5 more
wiley   +1 more source

Experimental studies on surface discharge dynamics and decay under different voltage waveforms and electrode shapes

, 2009
This paper studies the development and decay of surface discharge under various voltage waveforms and electrode shapes in air at atmospheric pressure.
Lewin, P.L., Tran, T.N., Swingler, S.G., Wilkinson, J.S., Coventry, P.F.   +4 more
core   +1 more source

Event-Based Evaluation of Short-Term Wettability Degradation of RTV Nanocomposite-Coated 150 kV Ceramic Insulators Under Tropical Flashover Stress

Corrosion and Materials Degradation
Flashover events can induce rapid surface condition changes on outdoor ceramic insulators, while early-stage degradation is typically assessed indirectly through long-term ageing or electrical diagnostics.
Yusreni Warmi, Nofriady Handra, Agus Sukarto Wismogroho, Syukri Syukri, Sitti Amalia, Andi M. Nur Putra, Hamdi Habdillah, Martini Martini, Muhammad Naufalun Nabil   +8 more
doaj   +1 more source

Flashover Performance and Process of Suspension Insulator Strings Artificially Covered with Snow

Energies, 2018
Snow accumulates on the surface of insulator string, causing a decrease in its electrical performance, seriously threatening the reliable operation of the power grid.
Yuyao Hu, Sihua Guo, Richang Xian, Xingbo Han, Zhongyi Yang, Ying Wu   +5 more
doaj   +1 more source

Short-term Breakdown and Long-term Failure in Nanodielectrics: A Review [PDF]

, 2010
Nanodielectrics, which are concentrated in polymer matrix incorporating nanofillers, have received considerable attention due to their potential benefits as dielectrics.
Yunxa Zhang, Yin, Guilai, Zhang, Yunxia, Guilai Yin, Suna Bai, Qingquan Lei, Jianying Li, Chen, George, Li, Jianying, Li, Shengtao, Bai, Suna, G. Chen, Zhong, Lisheng, Shengtao Li, Lisheng Zhong, Lei, Qingquan   +15 more
core   +1 more source