Results 91 to 100 of about 2,366,283 (219)
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
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
Cold-Sintered ZnO Ceramic Composites Co-Doped with Polytetrafluoroethylene and Oxides. [PDF]
Molecules, 2023 Xiao Y +7 more
europepmc +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
Production of metal oxide nanoparticles
, 2007 Particles having at least regions of at least one metal oxide having nano-sized grains are produced by providing particles of a material having an initial, nonequiaxed particle shape, prepg. a mixt.
Edwards, Geoffrey Alan +2 more
core
Application of Metal Oxide Nanoparticles and their Economic Impact
2965This chapter focuses on metal oxides as nano building blocks relevant in industrial applications. Metal oxide nanoparticles have been used as colloids and powders for quite some time.
Haas, Karl Heinz
core +1 more source
Gaoya dianqi, 2023 金属氧化物压敏电阻（metal oxide varistor,MOV）广泛应用于各种直流断路器中，用于抑制过电压、系统能量耗散与开断电压建立。受目前加工工艺限制，单MOV阀片通流能力有限，故断路器中多采用多柱并联结构。柱间电流分配不均会导致局部阀片超负荷耗能，造成开断失败甚至设备损坏。文中基于实验测量建立了一种直流开断工况下的MOV电气模型，基于该模型提出了MOV阀片均流选配方法。经实验验证，传统基于雷电冲击测试方法选配的MOV在直流开断工况的均流特性不能完全满足要求 ...
龙辰 +7 more
doaj
The Microstructural Location of the Intergranular Metal Oxide Phase in a Zinc Oxide Varistor [PDF]
, 1977 High resolution electron microscopy of a commercial ZnO based varistor reveals that the Bi-rich intergranular phase is found at all three and four grain junctions and that the majority of ZnO grains are not surrounded by an oxide barrier film as hitherto
Clarke, D. E, Clarke, D. E.
core
Electrospinning with metal and metal oxide nanoparticles for textile applications
Electrospinning technology has attracted much attention in recent years in many fields such as biomedicine, wound healing, drug delivery systems and the textile industry.
Dik, Gamze +3 more
core +1 more source
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
core