Results 41 to 50 of about 2,670,785 (225)

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

Mechanism of Quasi‐Power‐Frequency Resonant Overvoltage Triggered by Multiple Lightning Strikes in High‐Voltage Alternating Current Systems Equipped With Shunt Reactor

High Voltage, EarlyView.
ABSTRACT This paper investigates the generation mechanism of quasi‐power‐frequency resonant overvoltage triggered by multiple lightning strikes in high‐voltage alternating current (HVAC) systems equipped with shunt reactors. Based on field measurements from a 500 kV AC system, equivalent and simplified circuit models have been established to analyse ...
Tao Liang, Tao Cui, Zhengxi Wang, Tongwei Guo, Xiaohui Wu, Hong Zeng, Jie Guo, Yanzhao Xie   +7 more
wiley   +1 more source

Biomedical applications of metal oxide–carbon composites

, 2022
The synthesis and characterization of metal oxides have received substantial attention from researchers because of their wide-ranging applications in various fields, particularly in the biomedical area, resulting from their magnificent properties.
Ammar Z. Alshemary, Evis, Z., Zafer Evis, Motameni, A., Ali Motameni, Alshemary, A.Z.   +5 more
core   +1 more source

Investigations into Recycling Zinc from Used Metal Oxide Varistors via pH Selective Leaching: Characterization, Leaching, and Residue Analysis

The Scientific World Journal, 2015
Metal oxide varistors (MOVs) are a type of resistor with significantly nonlinear current-voltage characteristics commonly used in power lines to protect against overvoltages.
Toni Gutknecht, Anna Gustafsson, Christer Forsgren, Christian Ekberg, Britt-Marie Steenari   +4 more
doaj   +1 more source

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

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

Condition monitoring and deterioration analysis of metal oxide varistor [PDF]

Journal of Electrical Engineering, 2018
Abstract With the growing demand for application of metal-oxide varistor (MOV) in low-voltage electronic circuits for overvoltage protection, it is necessary to ensure its performance to avoid the short-circuit and the line-to-ground fault during operation.
Guoming Wang, Woo-Hyun Kim, Jong-Hyuk Lee, Gyung-Suk Kil   +3 more
openaire   +1 more source

Study on the Influence Mechanism of Side Surface Treatment Technology for ZnO Varistors

International Journal of Ceramic Engineering &Science, Volume 8, Issue 6, November 2026.
This study compares three ZnO varistor side treatments: insulating varnish, high‐resistance layer, and in situ repair. The in situ repair medium achieves superior pore filling and current distribution, raising 2‐ms surge withstand capability to 950 A, but reduces voltage gradient and increases leakage current.
Zhengzheng Fu, Zongxi Zhang, Songhai Fan, Tao Cui, Donghui Luo, Fenglian Liu, Yue Yin, Pengfei Meng   +7 more
wiley   +1 more source

Nonlinear Conductive Materials for Adaptive Electric Overstress Control: Theory, Tailoring and Applications

High Voltage, Volume 11, Issue 5, Page 1482-1500, October 2026.
ABSTRACT Artificial intelligence computing, renewable energy integration and transportation electrification are driving electrical and electronic equipment towards higher power densities, higher voltage ratings and greater miniaturisation. Under these trends, insulation systems have become a key bottleneck for reliability and compactness.
Zhiwen Huang, Xianrui Jiang, Gang Sun, Juntong Zong, Ya Sun, Jun Hu, Jinliang He   +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