A low leakage current (Co, Mn, Ta)-SnO2 varistor tailored by doping with chromium for power grids
Results 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
WenXin Liang
exaly +3 more sources
Effect of Ni2O3 Doping on the Electrical Properties and Intrinsic Defect Concentration of ZnO Varistor Ceramics [PDF]
E3S 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
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 +6 more
doaj +1 more source
Influence of ambient temperature on electrical properties of varistor-positor structure
Tekhnologiya 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
Percolation effects in dc degradation of ZnO varistors [PDF]
Journal 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
Mathematical model predicting the heat and power dissipated in an electro-conductive contact in a hybrid woven fabric [PDF]
, 2020 Electro-conductive (EC) yarns can be woven into a hybrid fabric to enable electrical current to flow through the fabric from one component A to another component B. These hybrid fabrics form the bases of woven e-textiles.
De Mey, Gilbert +5 more
core +2 more sources
Micro-Degradation Characteristics and Mechanism of ZnO Varistors under Multi-Pulse Lightning Strike
Energies, 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
Percolation effects in the capacitive properties of metal-oxide varistors in the range of high voltage [PDF]
Journal 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
Journal 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
Electrical properties of structures based on varistor ceramics and polymer nanocomposites with carbon filler [PDF]
Journal of Advanced Dielectrics, 2019 The characteristics of a two-layer structure on the basis of the layers of varistor ceramics and polymeric PPTC nanocomposite being in thermal contact for the purpose of using it as a limiter of constant voltage and long-term varying electrical ...
A. S. Tonkoshkur, A. V. Ivanchenko
doaj +1 more source