Results 71 to 80 of about 4,509 (248)

Consideration of surge arresters for low voltage mains applications [PDF]

, 2012
The work presented in this report details the background to surge arresters and surge protective device components, viz., spark gaps, gas discharge tubes and metal oxide varistors.
Michalopoulos, Aristidis
core  

Intelligent Maintenance Approaches for Improving Photovoltaic System Performance and Reliability

Solar RRL, Volume 9, Issue 16, August 2025.
This review evaluates how cutting‐edge technologies, such as Internet of Things and Artificial Intelligence, c. The article provides recommendations and future directions for the development of standardized frameworks to optimize maintenance practices and improve solar asset management. Photovoltaic (PV) systems play a pivotal role in the transition to
Demetris Marangis, Georgios Tziolis, Andreas Livera, George Makrides, Andreas Kyprianou, George E. Georghiou   +5 more
wiley   +1 more source

Quantitative grading of insulation damage to distribution transformers caused by high‐altitude electromagnetic pulse based on partial discharge detection

High Voltage, Volume 10, Issue 4, Page 1032-1042, August 2025.
Abstract Distribution transformers may experience insulation breakdown or degradation when exposed to the influences of high‐altitude electromagnetic pulse (HEMP), thus posing significant threats and uncertainties to the safety and stable operations of power systems.
Feng Qin, Simeng Li, Wei Chen, Yuxiang Yang, Xin Nie, Wei Wu   +5 more
wiley   +1 more source

Analysis of multiple lightning overvoltage on 110 kV transmission lines

Results in Engineering
As pointed out by the CIGRE TB 549 report issued by the International Power Grid Committee, >80 % of cloud-to-ground lightning are multiple lightning strokes (MLS), posing a severe threat to overhead transmission lines.
Yutao Tang, Haoming Liu, Hongchun Shu, Yue Dai, Yiming Han   +4 more
doaj   +1 more source

An automatic lightning detection and photographic system [PDF]

, 1972
Conventional 35-mm camera is activated by an electronic signal every time lightning strikes in general vicinity. Electronic circuit detects lightning by means of antenna which picks up atmospheric radio disturbances.
Gray, J. L., Holley, L. D., Hoover, R. B., Wojtasinski, R. J.   +3 more
core   +2 more sources

Development of a Lightning-Induced Overvoltage Suppression Device for the 10 kV Distribution Network [PDF]

, 2023
Xiaobing Xiao, Xiaomeng He, Xinyi He, Huapeng Li, Shuqing Hao, Yang Zhang   +5 more
openalex   +1 more source

Improved flashover prediction for overhead lines: Considering ground stratification and insulation volt‐time characteristics

High Voltage, Volume 10, Issue 4, Page 1061-1071, August 2025.
Abstract This paper presents an approach to accurately forecast the yearly occurrence of flashovers caused by lightning‐induced voltage in overhead power lines in the presence of layered ground. The aim is to improve the accuracy of flashover rate estimation by using the insulator volt‐time model.
Amin Foroughi Nematollahi, Behrooz Vahidi, Elaheh Saddat Ahmadi Mousavi   +2 more
wiley   +1 more source

X-Rays from long laboratory sparks in air [PDF]

, 2016
This collective book provides a review of research concentrated on runaway electron beams and X-rays in an inhomogeneous electric field with different gases at increased pressure.
Kochkin, Pavlo, March Nomen, Víctor, Montañá Puig, Juan   +2 more
core   +2 more sources

Transient Nonlinear Electrothermal Adjoint Sensitivity Analysis for HVDC Cable Joints

International Journal of Numerical Modelling: Electronic Networks, Devices and Fields, Volume 38, Issue 3, May/June 2025.
ABSTRACT Efficient computation of sensitivities is a promising approach for efficiently designing and optimizing high voltage direct current cable joints. This paper presents the adjoint variable method for coupled nonlinear transient electrothermal problems as an efficient approach to compute sensitivities with respect to a large number of design ...
M. Greta Ruppert, Yvonne Späck‐Leigsnering, Herbert De Gersem   +2 more
wiley   +1 more source

Lightning Flashover Characteristic and Effective Protection Measures of 10 kV Distribution Line Network

Energies
Among various failure causes, lightning overvoltage represents the most significant threat to overhead distribution lines, which serve as critical components in power systems.
Song Zhang, Xiaobin Xiao, Lei Jia, Huaifei Chen, Lu Qu, Chakhung Yeung, Yuxuan Ding, Yaping Du   +7 more
doaj   +1 more source