Performance comparison between Metal Oxide Varistor and Gas Discharge Tube against transient overvoltage due to lightning strike [PDF]
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
MOV型SPD在运行时,一些因素会使MOV启动后的电流过大,电流发热量超出MOV热容量就会使SPD失效。国家标准中热稳定实验考查的就是MOV对于这种热量累积的耐受程度。对国家标准中关于MOV(Metal Oxide Varistor)型SPD(Surge Protective Device)的热稳定性判断条件进行试验和分析,对比了直流和交流电压两种情况下的热量累积并设计试验。把直流电和交流电热累积统一到"热阻"的概念,试验表明,直流电造成的SPD发热量比交流电造成的SPD发热量大10%。
杨天琦, 王振会, 朱传林, 孙涌
doaj
The behaviour and performance of metal oxide varistor under the application of multiple lightning impulses / Mohd Aizad Safwan Abdul Majid [PDF]
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
Analysis of Electron Mobility in Inversion-Mode Al2O3/InxGa1-xAs MOSFETs [PDF]
The electron mobility in Al2O3/InxGa1-xAs (x = 0.53, 0.65, or 0.75) metal-oxide-semiconductor field-effect transistors was analyzed for scattering by oxide charge, as well as interface charge and roughness, and compared with measured transfer ...
Xuan, Yi +7 more
core +1 more source
MOV failure mode identification
A surge protector includes a thermal fuse, a metal oxide varistor electrically connected in series relation to the thermal fuse, and a detection network electrically connected in parallel relation to the thermal fuse and the metal
Stefanakos, Elias L. +2 more
core
This article conducts practical tests on four different configurations of solid-state DC circuit breakers (SS-DCCBs), investigating fault detection and circuit interruption phenomena in DC systems.
Mehdi Moradian +2 more
doaj +1 more source
Nano-socketed nickel particles with enhanced coking resistance grown in situ by redox exsolution [PDF]
DN thanks the European Project METSAPP (FCH JU-GA 278257) for funding. We also thank NSF and EPSRC for Materials World Network funding ref EP/J018414/1.Metal particles supported on oxide surfaces are used as catalysts for a wide variety of processes in ...
Ménard, Hervé +23 more
core +1 more source
Review and Analysis of Voltage Clamping Circuits With Low Overvoltage Ratios for DC Circuit Breakers
Voltage clamping circuits are critical components in most direct-current circuit breakers (dcCBs) to achieve ultrafast dc fault interruptions and an extended lifetime.
Shuyan Zhao +4 more
doaj +1 more source
Effect of sintering temperature on structural and electrical properties of silica doped zinc oxide based varistor / Nur Farhaim Abdul Rasul [PDF]
The effect of sintering temperature on the structural and electrical properties of silica doped zinc oxide, Si-doped ZnO based varistor have been investigated. The Si-doped ZnO with composition x [SLS] 100-x [ZnO], x= 3 wt.
Abdul Rasul, Nur Farhaim
core
Effect of bismuth oxide on zinc oxide properties for varistor applications / Saedah Munirah Sanusi [PDF]
The effect of bismuth oxide properties for varistor applications have been investigated. The Bi203 doped ZnO with composition [(100X)% ZnO)+(X%Bi2O3)]mol% have been prepared using solid state method.
Sanusi, Saedah Munirah
core

