Results 131 to 140 of about 475,480 (267)

国际上基于数值仿真计算金属氧化物避雷器的研究进展

open access: yesDianci 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

open access: yesIEEE Access
This 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

Synergistic Effects of Pr6O11 and Co3O4 on Electrical and Microstructure Features of ZnO-BaTiO3 Varistor Ceramics. [PDF]

open access: yesMaterials (Basel), 2021
Shaifudin MS   +9 more
europepmc   +1 more source

Study of Zinc Oxide Varistors by Incorporating Alkaline-Earth and Rare-Earth Metal Nanofillers [PDF]

open access: diamond, 2022
Parvathy Bhaskar   +99 more
openalex   +1 more source

DC-SSCB Snubber for Electric Propulsion Ships With Effective Surge Voltage Reduction and Fast Dissipation of Fault Current Energy

open access: yesIEEE Access
This paper proposes a snubber circuit for SSCB that performs voltage clamping operation in two stages to reduce surge voltage. The surge voltage is suppressed in the first stage using a MOV with low operating initiation and clamping voltages.
Jae-Hun Cha   +3 more
doaj   +1 more source

A DC SSCB With Range-Limited Parallel Operation Switches and a Snubber Circuit Utilizing Inverse Current Injection

open access: yesIEEE Access
Although many snubber circuits have been studied, research on circuits that effectively suppress surge voltage while supporting bidirectional operation remains relatively limited.
Jae-Seong Jo   +4 more
doaj   +1 more source

Novel Ultrahigh-Performance ZnO-Based Varistor Ceramics. [PDF]

open access: yesACS Appl Mater Interfaces, 2021
Tian T   +8 more
europepmc   +1 more source

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