Results 1 to 10 of about 487 (185)

Dielectric Loss and Electrical Conductivity Behaviors of Epoxy Composites Containing Semiconducting ZnO Varistor Particles [PDF]

open access: yesMolecules, 2022
Polymer nanodielectrics render a great material platform for exhibiting the intrinsic nature of incorporated particles, particularly semiconducting types, and their interfaces with the polymer matrix.
Li Lei   +4 more
doaj   +2 more sources

Novel Ultrahigh-Performance ZnO-Based Varistor Ceramics [PDF]

open access: yesACS Applied Materials & Interfaces, 2021
Pengfei Qiu, Tian Tian, Xun Shi
exaly   +2 more sources

Effect of Ni2O3 Doping on the Electrical Properties and Intrinsic Defect Concentration of ZnO Varistor Ceramics [PDF]

open access: yesE3S Web of Conferences, 2020
With the development of high voltage transmission, there is an urgent need to develop ZnO varistor ceramics with high anti-aging properties. The key is to manipulate the intrinsic defect concentration of ZnO varistor ceramics precisely.
Guo Qirui   +4 more
doaj   +1 more source

Varistor coupling method and recommendation parameters for combination wave test

open access: yesIET 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   +6 more
doaj   +1 more source

Percolation effects in dc degradation of ZnO varistors [PDF]

open access: yesJournal of Advanced Dielectrics, 2015
For quantitative estimation of the degree of electrical disorder (electrical inhomogeneity) in ZnO varistor ceramics caused by a variation in the barrier height at different grain boundaries in a sample, the comparison of threshold electric fields ...
A. S. Tonkoshkur   +2 more
doaj   +1 more source

Influence of ambient temperature on electrical properties of varistor-positor structure

open access: yesTekhnologiya i Konstruirovanie v Elektronnoi Apparature, 2022
Recently, the combined two-layer structure based on varistor ceramics and polymer posistor nanocomposites with carbon filler (known as PolySwitch resettable fuses) has been seen as one of the promising elements for protecting electrical circuits from ...
Alexander Ivanchenko   +1 more
doaj   +1 more source

A low leakage current (Co, Mn, Ta)-SnO2 varistor tailored by doping with chromium for power grids

open access: yesResults in Physics, 2020
A SnO2 varistor which was prospected to be used in ultra-high voltages grids as an overvoltage protection element was developed. The SnO2 varistor was doped with Cr to improve the comprehensive electrical properties. The optimal electrical parameters are
Hongfeng Zhao   +4 more
doaj   +1 more source

Micro-Degradation Characteristics and Mechanism of ZnO Varistors under Multi-Pulse Lightning Strike

open access: yesEnergies, 2020
In view of the problem that ZnO varistors are often subjected to thermal breakdown and deterioration due to lightning strikes in low-voltage power distribution systems, this article used a 8/20 µs multi-pulse surge current with a pulse time interval of ...
Chunlong Zhang   +4 more
doaj   +1 more source

Exploring the global publications on varistors using the Scopus database through a bibliometric analysis

open access: yesJournal of Asian Ceramic Societies, 2022
The global increase in electrical device consumption has escalated the demand for excellent surge protectors. As a state-of-the-art technology, varistor has received considerable attention due to its outstanding versatility and wide range of applications.
Muhamad Syaizwadi Shaifudin   +8 more
doaj   +1 more source

Percolation effects in the capacitive properties of metal-oxide varistors in the range of high voltage [PDF]

open access: yesJournal of Advanced Dielectrics, 2014
C–V characteristics of ZnO-based ceramic structures used in manufacturing high-voltage and low-voltage varistors of different chemical compositions and manufacturing techniques have been investigated. A correlation between the intensity of electric field
A. S. Tonkoshkur   +2 more
doaj   +1 more source

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