Recovery of Antimony: A Laboratory Study on the Thermal Decomposition and Carbothermal Reduction of Sb(III), Bi(III), Zn(II) Oxides, and Antimony Compounds from Metal Oxide Varistors [PDF]
, 2018 As antimony is typically present in industrial and commercial products only in small amounts, the concentration of antimony in waste types is low and a limited amount of antimony is currently recycled. One product relatively rich in antimony is the metal
Forsgren, Christer +2 more
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IEEE AccessThis 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
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Degradation analysis of metal oxide varistors under harmonic distortion conditions [PDF]
, 2016 A thesis submitted in ful lment of the requirements for the degree Doctor of Philosophy in Electrical Engineering May 2016Modern electrical networks provide an opportunity for inevitable interaction between metal oxide arresters and power system ...
Bokoro, Pitshou Ntambu
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IEEE AccessAlthough 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
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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
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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
Dielectric Loss and Electrical Conductivity Behaviors of Epoxy Composites Containing Semiconducting ZnO Varistor Particles. [PDF]
Molecules, 2022 Lei L, Chen C, Nie H, Wu X, Tan DQ.
europepmc +1 more source
First and subsequent return stroke properties of cloud-to-ground lightning [PDF]
Lightning properties obtained by a network of magnetic direction finders and by electric field measurements for distances from 50 to 500 km are compared for three summer thunderstorms in Sweden.
Lundquist, Stig, Namasivayam, S.
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Devices Selection and Topology Comparison for Medium Voltage DC Solid State Circuit Breakers [PDF]
, 2017 DC grid has been treated as a viable solution to solve green-house effect and reduce the cost of fossil fuels. Compared with AC grid, DC grid shows many inherent advantages, such as high efficiency power delivery, less expensive to deploy and no need for
Zhang, Yihui
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Improved Numerical Modeling of Electro-Thermal Coupling of MOVs Based on PSO Algorithm [PDF]
Metal oxide varistors (MOVs) have been widely employed in DC interruptions to absorb system energy and clamp overvoltage. Specifically, for operating conditions that require continuous actions, such as reclosing, the cumulative effect of temperature may ...
Bai, Yunfan +5 more
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