Results 61 to 70 of about 2,022 (170)
International Journal of Ceramic Engineering &Science, Volume 8, Issue 1, January 2026.ABSTRACT When the surge arrester is subjected to the working voltage for an extended period, it undergoes alternating current (AC) aging, which degrades the arrester's parameters and affects the safety of the power grid. Ni2O3 is an important additive in the ZnO varistor formulation, and its doping ratio significantly influences the performance of the ...
Lei Wang +4 more
wiley +1 more source
Processing of textured zinc oxide varistors via templated grain growth
, 2005 WOS: 000230039800024Textured, dense zinc oxide varistors were successfully fabricated by Templated Grain Growth (TGG) technique. Rod-like, anisotropic ZnO particles (templates) were synthesized by homogeneous precipitation method.
Özer, IO, Suvacı, Ender
core +1 more source
Applied SciencesSurface defect detection serves as one of the crucial auxiliary components in the quality control of varistors, and it faces real challenges such as the scarcity of defect samples, high labelling cost, and insufficient a priori knowledge, which makes ...
Shancheng Tang +3 more
doaj +1 more source
A Compact Air‐Cooled Totally‐Enclosed Integrated Motor Drive for Industrial Applications
IET Electric Power Applications, Volume 20, Issue 1, January/December 2026.This work presents a totally‐enclosed fan‐cooled integrated motor drive for industrial applications, in which the power converter is housed inside the motor and cooled using the existing fan, with a focus on the thermal behaviour and integration challenges. Using loss models and a combination of finite‐element and lumped‐parameter thermal analysis on a
Yentl Joos +3 more
wiley +1 more source
IET Electric Power Applications, Volume 20, Issue 1, January/December 2026.This study introduces an adaptive speed control strategy for fast mechanical switches using an IGBT fully controlled driving circuit. The approach combines PWM‐based current shaping with an intelligent secant algorithm to regulate opening speed in real time without hardware changes.
Wei Li +4 more
wiley +1 more source
Fabrication and electrical characteristics of flash-sintered SiO2-doped ZnO-Bi2O3-MnO2 varistors
Journal of Advanced Ceramics, 2020 The dense ZnO-Bi2O3-MnO2-xSiO2 (ZBMS) varistors for x = 0, 1, 2, 3 wt% were fabricated by flash sintering method under the low temperature of 850 °C within 2 min. The sample temperature was estimated by a black body radiation model in the flash sintering
Pai Peng +7 more
doaj +1 more source
IET Electric Power Applications, Volume 20, Issue 1, January/December 2026.This study comparatively assesses lightning‐overvoltage propagation to the transformer high‐voltage terminal and hydrogenerator busbar of a hydropower plant under prescribed lightning‐current injection and selected nonideal conditions of a station‐side metal‐oxide arrester.
Jiachen Zhang +9 more
wiley +1 more source
Influence of processing on microstructure and electrical characteristics of multilayer varistors
Journal of Advanced Ceramics, 2019 The paper reports on the influence of processing on microstructure and electrical properties of multilayer varistors based on zinc oxide doped with Bi2O3, Sb2O3, Co2O3, MnO, Cr2O3, B2O3, and SiO2.
D. Szwagierczak, J. Kulawik, A. Skwarek
doaj +1 more source
IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.A new evolutionary search algorithm based on improved Particle Swarm Optimisation (PSO) is introduced in this study to estimate the phasor. The performance has been evaluated through extensive simulations considering transient components, harmonics, and frequency changes in noiseless and noisy conditions.
Seyedeh Mina Abed Shiadeh +2 more
wiley +1 more source
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