Results 61 to 70 of about 703 (139)
IET Generation, Transmission &Distribution, Volume 18, Issue 14, Page 2397-2405, July 2024.The damped alternating current (DAC) testing system has emerged as an effective tool for inducing partial discharge (PD) events. This research contributes to the development of more efficient and affordable DAC generation technology for power cable testing applications.
Li Wang +3 more
wiley +1 more source
基于经验傅里叶分解的混合式高压直流断路器耗能支路故障检测方法研究 [PDF]
全球能源互联网为实现更强的能量耗散能力，混合式高压直流断路器的耗能支路需串并联大量金属氧化物压敏电阻（metal oxide varistor，MOV），耗能支路的可靠性将直接影响混合式高压直流断路器的可靠性。但是，现有的耗能支路故障检测方法并不能适应整个能量耗散阶段。为此，提出一种基于经验傅里叶分解的混合式高压直流断路器耗能支路故障检测方法，具体为：首先是信号预处理，对耗能支路每个子模块的分支电流进行归一化和一阶差分计算来获取分析电流；然后是故障特征提取，利用经验傅里叶分解（empirical Fourier ...
彭兆伟 +5 more
doaj +1 more source
A Study on Modeling of a Surge Protection Device [PDF]
, 2015 This paper presents a modeling of a surge protection device based on V-t curve characteristic. Metal oxide varistor (MOV) is one of common surge protection devices to protect following electric devices from over-voltage such as the lightning and ...
25620 +18 more
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Research of simulation and experiment on arc characteristics of gas mechanical switch
High Voltage, Volume 9, Issue 3, Page 626-635, June 2024.Abstract An arc is the high‐temperature discharge plasma produced in the opening process of mechanical switches, which directly affects the breaking capability of a hybrid DC circuit breaker. According to the physical mechanism of an electric arc, the construction of an arc model for simulation analysis is an important technical means in the electrical
Cheng Jiang +7 more
wiley +1 more source
IET Generation, Transmission &Distribution, Volume 18, Issue 7, Page 1325-1342, April 2024.This study proposes an optimal approach to improve the quality of a weak electrical power distribution system using thyristor‐controlled series capacitors (TCSC). The approach considers components like shunt capacitors and distributed generators, which are influenced by weather conditions.
Mohamed Abd‐El‐Hakeem Mohamed +2 more
wiley +1 more source
Active and Passive Electronic Components, Volume 2024, Issue 1, 2024.DC technologies constitute essential components within the scope of DC distribution networks. All DC networks confront inherent threats, such as DC short‐circuit faults, necessitating robust protective measures. Utilizing DC circuit breakers (DCCBs) emerges as a pivotal strategy for safeguarding these networks.
Sabah Daniar +2 more
wiley +1 more source
Influence of Intrinsic Trapping on The Performance Characteristics of ZnO-Bi 2 [PDF]
, 1994 The lumped parameter/complex plane analysis technique reveals several contributions to the ac small-signal terminal immittance of the ZnO-Bi2O3 based varistors' grain-boundary response.
Mohammad A. Alim
core +2 more sources
Turboelectric distributed propulsion protection system design trades [PDF]
, 2014 The NASA N3-X blended-wing body with turboelectric distributed propulsion concept is being studied to achieve N+3 goals such as reduced noise, emissions, and improved energy efficiency. The electrical distribution system is cryogenic in order to maximize
Armstrong, M. +5 more
core +1 more source
CSEE Journal of Power and Energy SystemsEnvironmental issues associated with the aviation industry are getting more attention as air traffic increases. Stringent standards are imposed for fuel consumption and pollution emissions for next-generation aircraft.
Muhammad Junaid +5 more
doaj +1 more source
A new technicque for metal oxide surge arresters failure diagnostic using return voltage measurement [PDF]
, 2009 Due to their reliability and accuracy, many modern diagnostics based on dielectric voltage response, such as polarization/depolarization current (PDC), voltage decay (VD) and return voltage (RV) measurements, have been used in monitoring ageing processes
Abdul Malek, Zulkurnain
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