Results 11 to 20 of about 4,266 (203)

Computational Model and Experimental Validation of the Influence of Grain‐Boundary Parameters on the Electrical Performance of Arrester Varistor

International Journal of Ceramic Engineering & Science
From a materials‐computation perspective, this study integrates the electron‐excitation model of double Schottky‐barriers with a Voronoi network to characterize the microscopic electrical and structural properties of ZnO varistors.
Zhengzheng Fu, Zongxi Zhang, Songhai Fan, Tao Cui, Donghui Luo, Pengfei Meng, Yue Yin, Jingke Guo   +7 more
doaj   +2 more sources

Analysis of the failure mechanism of ZnO varistors influenced by high‐resistance media based on multi‐field coupling simulation

High Voltage
This study focuses on the distribution of high‐resistance media (pores and spinels) within ZnO varistors and explores the mechanical and electrical failure mechanisms of varistors under different pulse actions.
Pengfei Meng, Yue Yin, Lei Wang, Jingke Guo, Zerui Li, Kai Zhou, Guangya Zhu, Yefei Xu   +7 more
doaj   +2 more sources

Influence of Y–Bi–Co oxide doping on electrical performance of ZnO varistors based on simulation analysis

International Journal of Ceramic Engineering & Science
ZnO varistors doped with Y2O3, Bi2O3, and Co2O3 were analyzed for electrical performance, microstructure, phase composition, and elemental distribution using electrical performance testing, scanning electron microscopy, X‐ray diffraction, and energy ...
Zhengzheng Fu, Zongxi Zhang, Songhai Fan, Tao Cui, Donghui Luo, Yue Yin, Pengfei Meng, Jingke Guo   +7 more
doaj   +2 more sources

Effect of the sintering temperature on the electrical properties of Y–Al‐doped ZnO varistors

International Journal of Ceramic Engineering & Science
To investigate the relationship between the electrical properties of Y–Al doped ZnO varistors and sintering temperature, in this study, we measured the voltage–current characteristics and electrical performance parameters of samples sintered at 1100∘C ...
Lei Wang, Hang Zhang, Kexin Zhang, Yubo Shen, Limin Qu, Yue Yin, Pengfei Meng, Jingke Guo   +7 more
doaj   +2 more sources

Size effect on properties of varistors made from zinc oxide nanoparticles through low temperature spark plasma sintering [PDF]

, 2009
Conditions for the elaboration of nanostructured varistors by spark plasma sintering (SPS) are investigated, using 8-nm zinc oxide nanoparticles synthesized following an organometallic approach. A binary system constituted of zinc oxide and bismuth oxide
Angerer, Anselmi-Tamburini, Bartkowiak, Bernik, Beyer, Buscaglia, Catherine Elissalde, Chaim, Chaim, Chaim, Chen, Choi, Chung, Clarke, Clarke, de la Rubia, Drouet, Duran, Ellmer, Ezhilvalavan, Ezhilvalavan, Gao, Glot, Greuter, Guha, Gupta, Han, Hong, Huang, Kahn, Kahn, Kang Xue, Kobayashi, Lee, Lin, Liu, Look, Luo, Mishra, Monge, Morris, Olsson, Olsson, Olsson, Onreabroy, Onreabroy, Pillai, Singhal, Sonder, Wang, Wang, Wong, Xu, Zhijian Shen   +53 more
core   +2 more sources

Case Study about the Energy Absorption Capacity of Metal Oxide Varistors with Thermal Coupling

Energies, 2019
Metal oxide varistors are applied today inside modern surge arresters for overvoltage protection for all voltage levels. Their main issue is the thermal activation of their crossing current, which could lead to complete destruction by thermal runaway ...
Flaviu Mihai Frigura-Iliasa, Sorin Musuroi, Ciprian Sorandaru, Doru Vatau   +3 more
doaj   +1 more source

Electronic properties of SnO2-based ceramics with double function of varistor and humidity sensor [PDF]

, 2009
This is the post-print version of the article. The official published version can be obtained from the link below - Copyright @ 2010 AD-Tech.Tin dioxide based varistor ceramics SnO2-Co3O4-Nb2O5-Cr2O3-xCuO (x=0; 0.05; 0.1 and 0.5) were made and their ...
Bulpett, R, Gaponov, AV, Glot, AB, Jimenez-Santana, G, Jones, BJ, Sandoval-García, AP   +5 more
core   +1 more source

Leakage Current Measurements of Surge Arresters

Energies, 2023
The paper presents the methods of assessing the technical condition of varistor surge arresters used in laboratory tests and in operation—performed without disconnecting the arresters from the network.
Marek Olesz, Leszek S. Litzbarski, Grzegorz Redlarski   +2 more
doaj   +1 more source

Electrical properties of magnesium titanate ceramics post-sintered by hot isostatic pressing [PDF]

Science of Sintering, 2017
Post-sintering of magnesium titanate ceramics by hot isostatic pressing (HIP) in an oxygen-free atmosphere significantly alters various electrical properties of the product. In particular, the sintered material becomes a semiconductor.
Đorđević Antonije R., Olćan Dragan I., Obradović Nina, Paunović Vesna, Filipović Suzana, Pavlović Vladimir B.   +5 more
doaj   +1 more source

Varistor coupling method and recommendation parameters for combination wave test

IET Science, Measurement & Technology, 2023
Varistor coupling is recommended by International Telecommunication Union in combination wave test waveforms of surge protective devices (SPD), although the varistor coupling method and recommendation parameters for the combination wave test are not well
Mi Zhou, Weihan Zhao, Dongdong Wang, Haoshen Fan, Li Cai, Jianguo Wang, Yadong Fan   +6 more
doaj   +1 more source