Results 41 to 50 of about 968 (215)
Surface Flashover in 50 Years: III. Extreme Environments and Industrial Challenges
High Voltage, Volume 11, Issue 1, Page 100-142, February 2026.ABSTRACT Modern high‐voltage electrical equipment operates in complex environments where surface conditions are subjected to multifaceted influences from electric fields, thermal gradients, contaminants, irradiation and other extreme environmental factors.
Zhen Li +6 more
wiley +1 more source
Preparation of ZnO-based varistors by the sol-gel technique
, 1994 ZnO-based varistors consisting of 96 mol% ZnO and 4 mol% additive oxides (Bi2O3, Sb2O3, NiO, Co2O3, MnO and Cr2O3) have been prepared. Four different procedures have been applied to obtain the starting powder mixture.
Österlund, Ragnar +4 more
core +1 more source
ZnO varistors prepared by direct mixing of constituent phases [PDF]
, 2000 ZnO varistors with non-linearity coefficients reaching 50 and low values of the leakage current (approximately 0.01 A/m2), were obtained by a method referred to as `direct mixing of constituent phases'.
Uskoković, D +6 more
core +1 more source
Simulation‐Based Material Design for HVDC Cable Accessories
High Voltage, Volume 11, Issue 1, Page 25-36, February 2026.ABSTRACT The worldwide increasing demand for electricity, coupled with the need for more reliable infrastructures and more interconnected networks, has put forward high voltage direct current (HVDC) technologies for energy transmissions. Questions still arise as regards synthetic insulation for cable systems and accessories, as it remains one of the ...
Thi Thu Nga Vu +2 more
wiley +1 more source
Electrical and microstructural characterization of doped ZnO based multilayer varistors
, 2017 Purpose The purpose of this study was to develop fabrication procedure of multilayer varistors based on doped ZnO and to investigate their microstructure and electrical properties.
Jan Kulawik +2 more
core +1 more source
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
doaj
High Voltage, Volume 11, Issue 1, Page 1-24, February 2026.ABSTRACT With the development of deep‐sea wind power and large‐scale onshore clean energy, the global demand for higher voltage level DC cable power transmission technology has become increasingly urgent. This paper systematically reviews the technical advancements in high voltage direct current (HVDC) cable accessories, addressing design challenges of
Zongxi Liu +5 more
wiley +1 more source
Effect of sintering temperature on microstructure and nonlinear electrical characteristics of ZnO varistor [PDF]
Journal of Advanced Dielectrics, 2018 The nonlinear properties of ZBMCCS-based varistors, which are composed of ZnO–Bi2O3–MnO2–Cr2O3–Sb2O3–Co3O4 and SiO2 are studied inrelation to sintering temperature, in the range of 1280–1350∘C.
Ahmed Bouchekhlal, Farida Hobar
doaj +1 more source
Influence of spinel phase composition on ZnO varistors properties
, 1998 The method of directed synthesis of the constituent phases (DSCP) was applied to investigate the influence of spinel phase composition on characteristics of ZnO varistors.
Uskoković, D +3 more
core +1 more source
Effect of MnO2${ ext{MnO}}_{2}$ doping on AC aging characteristics of varistor in arrester
International Journal of Ceramic Engineering & ScienceAs the core component of lightning arrester, the performance of ZnO varistor directly affects the protection level of lightning arrester. Under the action of long‐term AC voltage, the varistors are prone to AC aging, which leads to the deterioration of ...
Zhengzheng Fu +8 more
doaj +1 more source