Results 41 to 50 of about 457 (219)
Fabrication and characterization of varistor-polymer composite based on zinc oxide [PDF]
, 2012 This research focuses on fabricating a varistor-polymer composite based on nanosized ZnO and micro-sized ZnO, and comparing their current-voltage characteristics.
Fatehi, Asma
core
Multipulse lightning currents and metal-Oxide arresters
, 1997 Multiple stroke lightning ground flashes can impose surges of exceptional severity on exposed distribution surge arresters. This paper describes a series of tests on metal-oxide (MO) arresters and varistors to study surface flashover mechanisms.
Darveniza M. +3 more
core +1 more source
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
Journal of the American Ceramic Society, Volume 109, Issue 2, February 2026.The abnormal expansion associated with the simultaneous synthesis and sintering of Zn2SnO4 from ZnO and SnO2 is due to the reaction mechanism and correlated with the conversion. This phenomenon opens the way to manufacture porous ceramics without the addition of pore generators, simplifying the process, and especially the thermal treatment.
María José Orts +3 more
wiley +1 more source
High VoltageThe submodule in multilevel modular converters experiences a very fast transient overvoltage (VFTO) during switch operation of gas‐insulated switchgear, which also results in overvoltage on power devices, such as thyristors and insulated gate bipolar ...
Hong Shen +7 more
doaj +1 more source
Reliability evaluation of metal oxide varistors for maintenance scheduling [PDF]
WIT Transactions on Ecology and the Environment, Vol 91, 2006 Surge overvoltages result in a power system from overcurrents due to atmospheric discharges, induction phenomena, switch operations or faults. In order to reduce the probability of injuries to people and of failure of electrical and electronic systems, power systems within a structure should have adequate equipotential bonding. Surge protective devices
Amicucci, G. L., Gentile, P.
openaire +2 more sources
The Microstructural Location of the Intergranular Metal Oxide Phase in a Zinc Oxide Varistor [PDF]
, 1977 High resolution electron microscopy of a commercial ZnO based varistor reveals that the Bi-rich intergranular phase is found at all three and four grain junctions and that the majority of ZnO grains are not surrounded by an oxide barrier film as hitherto
Clarke, D. E, Clarke, D. E.
core
International Journal of Ceramic Engineering &Science, Volume 8, Issue 1, January 2026.This paper presents a calculation model for the nonlinear characteristics of varistors based on a basic conductive mechanism, and it has been verified through experiments. The mechanism of the barrier's effect on electrical performance has been obtained.
Zhengzheng Fu +7 more
wiley +1 more source
Frontiers in Energy Research, 2023 Series-compensated transmission lines (SCTLs) are increasingly preferred for transmitting bulk amounts of electricity generated from the present-day large-scale wind farm to the utility grid due to several technical and economic benefits. However, when a
M. S. Prabhu +4 more
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