Results 71 to 80 of about 2,517,738 (175)
Superior performing nano‐enabled metal oxide varistors [PDF]
International Journal of Ceramic Engineering & Science, 2019 AbstractCommercial metal oxide varistor devices are subject to nonuniformity, defects and coarse grain size, low working voltage, high leakage current, and mechanical cracking issues. This work tempted to make use of nanopowders and alternative sintering processes to achieve uniform microstructure and superior varistor performance.
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IET Smart Grid, Volume 9, Issue 1, January/December 2026.This paper presents a deep Bidirectional Gated Recurrent Unit (Bi‐GRU)‐based protection scheme for series‐compensated transmission lines using only local voltage and current measurements. The proposed method extracts fundamental‐frequency phasors through discrete Fourier transform and is trained on a comprehensive dataset covering various compensation ...
Majid Khezerloo +2 more
wiley +1 more source
Temperature monitoring of metal oxide surge arresters [PDF]
, 2013 Varistor overtemperature above the ambient is an important state parameter of metal oxide surge arresters. The temperature monitoring using passive SAW sensors enables realisation of a surge counter function, an energy monitor, monitoring of electrical ...
Hinrichsen, V., Chrzan, K L
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The Effects of Electrical Degradation on the Microstructure of Metal Oxide Varistor [PDF]
, 2001 In this paper, the findings from systematic experiments with the purpose to determine the degradation effect of single and multiple current pulses on the microstructure of the Metal Oxide (MO) varistor are described. Six distribution class varistors from
Saha, Tapan K. +2 more
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Journal of the American Ceramic Society, Volume 109, Issue 1, January 2026.Abstract Microstructure homogeneity and grain size reduction are needed to ensure the current uniformity and reliability required in metal oxide varistors for DC circuit breakers. Cold sintering (CS)–a low‐temperature digestive liquid and high‐pressure densification process–has previously shown reduced grain growth, but it is not clear how the lower ...
Kayla Y. Chuong +5 more
wiley +1 more source
Back Flash Overvoltage Damages All DC/AC Converters in Photovoltaic Systems
IEEE AccessThis research addresses real faults in photovoltaic (PV) systems in Cuba, as these faults result in damage to all converters, whether in operation or not, when atmospheric discharge strikes nearby.
Osmel Perez Baluja +4 more
doaj +1 more source
Metal Oxide Surge Arresters under Nonsinusoidal Voltage Stresses [PDF]
, 2019 Tato práce se zabývá vlivem vysokofrekvenčního napěťového zkreslení na omezovače přepětí pro vysokonapěťové aplikace. V rešeršní části jsou nejprve rozebrány základní typy svodičů používaných v soustavách vysokého napětí.
Ivan Chromeček
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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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Performance comparison between Metal Oxide Varistor and Gas Discharge Tube against transient overvoltage due to lightning strike [PDF]
, 2014 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
Stability of Metal-Oxide Varistor Characteristics in Exploitation Conditions
Acta Physica Polonica A, 2009 Wide-spread use of metal–oxide varistors for non-linearity over-voltage protection results in a variety of possible working conditions. It is therefore essential to have a thorough insight into their reliability in various exploitation environments.
Lončar, Boris B. +3 more
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