Results 81 to 90 of about 2,517,738 (175)
Dianci bileiqi, 2011 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]
, 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
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MOV failure mode identification
, 2009 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
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Analysis of Electron Mobility in Inversion-Mode Al2O3/InxGa1-xAs MOSFETs [PDF]
, 2011 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
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Power Electronic Devices and ComponentsThis 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]
, 2015 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
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Review and Analysis of Voltage Clamping Circuits With Low Overvoltage Ratios for DC Circuit Breakers
IEEE Open Journal of the Industrial Electronics SocietyVoltage 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
Metal Oxide ZnO-Based Varistor Ceramics [PDF]
, 2011 A varistor is a type of resistor with a significantly non-ohmic current-voltage characteristic. The name is a portmanteau of variable resistor, which is misleading since it is not continuously user-variable like a potentiometer or rheostat and is capacitor rather than resistor at low field. The most famous type of varistor is metal oxide varistor (MOV),
openaire +1 more source
Interaction of nanostructured metal overlayers with oxide surfaces
, 2007 Interactions between metals and oxides are key factors to determine the performance of metal/oxide heterojunctions, particularly in nanotechnology, where the miniaturization of devices down to the nanoregime leads to an enormous increase in the density ...
Wagner, Thomm, Thomas Wagner, Fu, Qiang
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Effect of bismuth oxide on zinc oxide properties for varistor applications / Saedah Munirah Sanusi [PDF]
, 2020 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
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