Results 111 to 120 of about 2,366,283 (219)
International Journal of Electrical Power & Energy SystemsThe DC fault is a serious challenge to voltage-source-converter-based HVDC (VSC-HVDC) systems, and the fault current limiter (FCL) is one of the key measures to solve the DC fault and reduce the capacity of the DC circuit breaker.
Ziao Yuan +4 more
doaj +1 more source
Degradación y recuperación de varistores de ZnO
Boletín de la Sociedad Española de Cerámica y Vidrio, 2006 In the present work it was studied the main aspect that influences on degradation and physical-chemical properties at grainboundary region of metal oxide varistors and its consequences on microstructure and nonohmic electric properties.
Ramírez, M. A. +3 more
doaj
Performance comparison between Metal Oxide Varistor and Gas Discharge Tube against transient overvoltage due to lightning strike [PDF]
, 2014 This project presents the comparison of the performance of transient overvoltage due to lightning strike. There were two protection devices compared in this project which is Metal Oxide Varistor (MOV) and Gas Discharge Tube (GDT).
Ajut, Lawrence
core
Temperature monitoring of metal oxide surge arresters [PDF]
, 2013 Varistor overtemperature above the ambient is an important state parameter of metal oxide surge arresters. The temperature monitoring using passive SAW sensors enables realisation of a surge counter function, an energy monitor, monitoring of electrical ...
Hinrichsen, V., Chrzan, K L
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Dianci bileiqi, 2018 系统综述了基于数值仿真计算技术在金属氧化物避雷器（metal-oxide surge arresters,MOA）研究中的应用发展。共分3个方面:1)基于等效电路模型的数值仿真计算;2)基于电、机械与热的两或多物理量（场）耦合的金属氧化物电阻片（metal-oxide surge varistor,MOV）数值仿真计算;3)整只MOA的电场、温度场或多物理场耦合的数值仿真计算。对于MOV的建模和仿真计算,将来主要的努力方向是改进数学计算模型,以便可以描述ZnO晶界与时间和温度相关的特性 ...
赵冬一, 李凡, 汤霖
doaj
A Comprehensive Study on the Quality of Commercially Available Medium Voltage Surge Arresters
IEEE AccessThis paper presents a comprehensive study on the quality and reliability of commercially available medium voltage surge arresters, with particular emphasis on their electrical performance and structural degradation under aging conditions.
Kuba Wojcik +8 more
doaj +1 more source
Effects of Dopants and Processing Parameters on the Properties of ZnO-V2O5-Based Varistors Prepared by Powder Metallurgy: A Review. [PDF]
Materials (Basel), 2023 Lungu MV.
europepmc +1 more source
Zno varistor of low-temperature sintering ability
, 2011 [[abstract]]Zinc oxide (ZnO) varistors containing vanadium oxide as the principal additive and one or more cobalt oxides and/or manganese oxides additives exhibit excellent nonlinear current-voltage characteristics.
Wu, Tai-Bor;Tsai, Jyh-Kuang
core
The behaviour and performance of metal oxide varistor under the application of multiple lightning impulses / Mohd Aizad Safwan Abdul Majid [PDF]
, 2010 The behavior and performance of lightning protective devices such as the metal oxide varistor (MOV) under the application of multiple lightning impulses are different from that of the standard single stroke test.
Abdul Majid, Mohd Aizad Safwan
core
Characterization of different metal oxide promoted alumina catalyst [PDF]
, 2017 In this study, different metal oxide alumina promoted catalysts were prepared and characterized. All the catalysts (CaO/Al2O3, CuO/Al2O3, FeO/Al2O3, MnO/Al2O3, NiO/Al2O3 and ZnO/Al2O3) were prepared using the incipient wetness impregnation method ...
S.M. Anisuzzaman +4 more
core +2 more sources