Results 41 to 50 of about 2,235 (252)

Two basic ways to realise DC circuit breakers

The Journal of Engineering, 2019
As a key element of the DC grid, the technology of DC circuit breakers (DCCBs) still have difficulty to be widely used due to its large cost and volume. This paper studies the basic principle and its realisation methods for DCCBs.
Zheng Xu, Huangqing Xiao, Huangqing Xiao, Yuzhe Xu   +3 more
doaj   +1 more source

Reduction Reactive Power and Collapse Voltage Using Series Capacitors Compensation in Sudden Change Loads of Transmission Lines [PDF]

Engineering and Technology Journal, 2012
The continuous increase of disturbances on the interconnected electric power system resulting in its inability to reliably meet demands. This paper presents an application of a series capacitor compensation in transmission line and shunt reactors ...
Hussein Thani Rishag
doaj   +1 more source

Influence of UHV GIL access on transient recovery voltage of circuit breaker

电力工程技术, 2022
The access of ultra high voltage (UHV) gas-insulated transmission line (GIL) affects both the transient recovery voltage (TRV) amplitude and the rate of rise of TRV (RRRV) of circuit breakers,which may endanger the breaking capacity of circuit breakers ...
SUN Yi, LIU Jinghui, ZHENG Xinlei, LI Jiangtao, XU Yiqing, SHI Dajun   +5 more
doaj   +1 more source

Ultra‐Rapid Blacklight Sintering for ZnO‐Based Varistors With Optimized Functional Properties

Journal of the American Ceramic Society, Volume 109, Issue 3, March 2026.
ABSTRACT The increasing demand for energy‐efficient optoelectronic systems has intensified interest in high‐performance ceramic varistors, which are critical components in surge protection applications. In this study, ZnO‐based varistors were fabricated using a novel blacklight sintering (BLS) technique, which employs high‐powered blue light, and were ...
Ahmad Sayyadi‐Shahraki, Michael Scherer, Lukas Porz, Mohammad Maleki Shahraki, Till Frömling   +4 more
wiley   +1 more source

dv/dt Dependence in metal oxide varistors

Electronics Letters, 1986
A dv/dt dependence has been observed in metal oxide varis-tors during impulse testing. A lossy dielectric model which provides a qualitative explanation of this behaviour can also be used to account for current overshoot.
de Cogan, D., Leesen, M.
openaire   +2 more sources

Grain Boundary Space Charge Engineering of Solid Oxide Electrolytes: Model Thin Film Study

Advanced Functional Materials, Volume 36, Issue 14, 16 February 2026.
This study demonstrates unprecedented control of grain boundary electrical properties in solid electrolytes. Selective diffusion of cations through grain boundaries in thin films enables 12 orders of magnitude variation in ionic resistance, proving that systematic chemical modification of grain boundary electrical properties is feasible.
Thomas Defferriere, Yong Beom Kim, Colin Gilgenbach, James M. LeBeau, WooChul Jung, Harry L. Tuller   +5 more
wiley   +1 more source

Surface Flashover in 50 Years: III. Extreme Environments and Industrial Challenges

High Voltage, Volume 11, Issue 1, Page 100-142, February 2026.
ABSTRACT Modern high‐voltage electrical equipment operates in complex environments where surface conditions are subjected to multifaceted influences from electric fields, thermal gradients, contaminants, irradiation and other extreme environmental factors.
Zhen Li, Heng Zhang, He Gao, Ji Liu, Yoshimichi Ohki, George Chen, Shengtao Li   +6 more
wiley   +1 more source

Development of a Low-Energy Mobile Current Waveform Impulse Generator for Application in Low Voltage Surge Arresters [PDF]

Brazilian Archives of Biology and Technology
Surge arresters are at the forefront of protection against voltage surges. The loss of the protective effect of surge arresters imposes accidents and unplanned shutdowns on the power system.
Tiago Goncalves Zacarias, Rafael Martins, Carlos Eduardo Xavier, Júlio Cezar Oliveira Castioni, Germano Lambert-Torres, Frederico de Oliveira Assunção, Levy Ely de Lacerda de Oliveira, Carlos Eduardo Teixeira, Luiz Eduardo Borges da Silva, Erik Leandro Bonaldi   +9 more
doaj   +1 more source

Technical Progress, Challenges and Prospects of HVDC Cable Accessories: A Review With Chinese Practice Insights

High Voltage, Volume 11, Issue 1, Page 1-24, February 2026.
ABSTRACT With the development of deep‐sea wind power and large‐scale onshore clean energy, the global demand for higher voltage level DC cable power transmission technology has become increasingly urgent. This paper systematically reviews the technical advancements in high voltage direct current (HVDC) cable accessories, addressing design challenges of
Zongxi Liu, Benhong Ouyang, Kaiwen Huang, Yuli Wang, Jiankang Zhao, Peng Zhao   +5 more
wiley   +1 more source

Investigation of Limitations in Passive Voltage Clamping-Based Solid-State DC Circuit Breakers

IEEE Open Journal of Power Electronics, 2022
This paper investigates limitations of passive voltage clamping based dc solid-state circuit breakers (SSCBs). There are two major contributions of this paper.
Shuyan Zhao, Reza Kheirollahi, Yao Wang, Hua Zhang, Fei Lu   +4 more
doaj   +1 more source