Results 91 to 100 of about 122,559 (221)
Boundary breakdown time of ZnO varistors under nanosecond pulse current
AIP Advances, 2019 Conductive properties of zinc oxide (ZnO) varistor ceramics depend on the boundary barrier structure. By using the photoconductivity switches (PCSS) technology, the boundary breakdown characteristics of ZnO varistors for nanosecond electric pulse ...
Guangyong Xie, Mengyuan Wu, Wei Shi
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High Voltage, 2019 In this article, an analysis of heat transfer in a porcelain-housed ZnO surge arrester is presented. Due to the fact that ZnO-based surge arresters are key components for protection and reliability of electrical systems, it is necessary to seek ...
Arthur F. Andrade +5 more
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Penghasilan varistor ZnO melalui kaedah pencampuran konvensional dan pengelompokan induk
, 2010 Varistor berasaskan zink oksida, ZnO telah difabrikasikan menggunakan teknik percampuran konvensional dan pengelompokan induk (PI). Kesan halaju pengisaran mesin pengisar bola planet (PBM) semasa proses penghomogenan dalam penghasilan varistor ...
Noor Azira, Mohd Noor
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Fabrication of Sn-Doped ZnO Varistor by Solid State Processing
, 2011 In this work, systematic substitution of ZnO with SnO2 in ZnO-based varistor composition was investigated through analysis of densification, phase formation, microstructure and non-linear properties. The general formula was Zn0.96-xSnxBi0.02Co0.02Oβ with
Warunee Srichan +4 more
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The Role of Polypyrrole in Electrical Properties of ZnO-Polymer Composite Varistors [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2017 Composite films on the base of ZnO with different weight percentages of polypyrrole have been prepared using the hot pressing method and their current-voltage characteristics have been studied. Results show that the films have nonlinear varistor behavior
Nasim Asaadi +3 more
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Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2003 ZnO esaslı varistörl e r çok bileşenli yarı iletkenseraınil\lerdir. Çok bileşe nli ollt;sit seranıiklerinelektrik s el da,ıra nışları hen1 malzemeninmikroyapısına henı de ZnO t a n e sınırlarında oluianürünlerin yapısına bağlidır.
Özlem YÜKSEL +2 more
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Zno varistor of low-temperature sintering ability
, 2011 [[abstract]]Zinc oxide (ZnO) varistors containing vanadium oxide as the principal additive and one or more cobalt oxides and/or manganese oxides additives exhibit excellent nonlinear current-voltage characteristics.
Wu, Tai-Bor;Tsai, Jyh-Kuang
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Discover ElectronicsZnO-based varistors are widely used in electrical equipment for surge protection. This research explores the influence of sintering parameters—such as sintering temperature, ramp rate and soaking time—on microstructure development and V-I characteristics
Muhammad Hassan +3 more
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INTRINSIC DEFECTS IN ZnO VARISTOR CERAMICS
Acta Physica Sinica, 1996 The relationship between dielectric loss factor D (tanδ) and frequency for ZnO-Sb2O3-BaO and ZnO-Bi2O3-Sb2O3-BaO varistor ceramics has been investigated. A new dielectric loss peak was found near by 2MHz at room temperature for the sample in the absence of Bi2O3, the corresponding electron trapping level was about 0.18 eV, it was considered that the ...
null FU GANG +2 more
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The Simulation of Failure Modes on ZnO Varistors
IEEJ Transactions on Power and Energy, 2008 There are three main failure modes of ZnO varistors; thermal runaway, puncture and cracking. It is important from the operational point of view for user of ZnO surge arresters to know the fundamental mechanisms of these failure modes. I led many equations on these failures and simulated failure modes.
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