Results 31 to 40 of about 574,125 (334)

A Coupling Analysis of Multiphysical Field for ZnO Surge Arrester Installed in Photovoltaic Substation

open access: yesZhongguo dianli, 2022
Conventional finite element analysis(FEA) employed in multiphysical field coupling analysis usually suffers from such drawbacks as large computational effort and heavy reliance on grid quality.
Tianyi ZHANG, Zhijian LIANG, Rui ZHU
doaj   +1 more source

Grading ring parameters optimization for 220 kV metal‐oxide arrester using 3D‐FEM method and bat algorithm

open access: yesIET Science, Measurement & Technology, 2021
Aging of metal oxide surge arresters is mainly affected by the high electric stress near the high voltage electrode. It has been observed that the distribution of voltage and electric field along an arrester is non‐uniform.
Nadjim Alti   +2 more
doaj   +1 more source

Study on the thermal behaviour and non‐linear coefficient of the 10 kV ZnO surge arrester

open access: yesIET Generation, Transmission & Distribution, 2020
The thermal behaviour of the surge arrester is vital to assess its operational condition. The surge arrester usually shows a process of temperature rising during a long-term operation, particularly after subjecting to a surge.
Li Cai   +5 more
semanticscholar   +1 more source

Tower grounding improvement versus line surge arresters: comparison of remedial measures for high-BFOR subtransmission lines [PDF]

open access: yes, 2015
This paper presents a technical/economic comparison between remedial measures aimed at improving the lightning performance of an existing Italian three-phase 150-kV overhead line.
GATTA, Fabio Massimo   +4 more
core   +1 more source

Synergy of radioactive 241Am and the effect of hollow cathode in optimizing gas-insulated surge arresters characteristics [PDF]

open access: yesNuclear Technology and Radiation Protection, 2018
The paper discusses the possibility of improving the character of gas surge arresters. Examined were: the magnetic field effect, the effect of the hollow cathode, and the effect of the alpha radiation source 241Am. Numerical and real experiments
Jusić Alija   +4 more
doaj   +1 more source

Effect of the drop out fuse connection scheme on the overvoltage and the surge arrester in a distribution system

open access: yesEnergy Reports, 2023
Overvoltage is a critical problem of Thailand’ distribution system. The electrical protection device in the distribution system needs to be able to support this level of overvoltage.
Chaiyaporn Lothongkam   +2 more
doaj  

Modeling Metal Oxide Surge Arrester for the Modern Polarization Based Diagnostics [PDF]

open access: yes, 2005
Recently a number of new non-destructive diagnostic techniques have been investigated for the reliable condition assessment of the ageing of metal oxide surge arrester (MOSA).
Mardira, K. P., Saha, T. K.
core   +1 more source

Hybrid HVDC circuit breaker with self-powered gate drives [PDF]

open access: yes, 2016
The ever increasing electric power demand and the advent of renewable energy sources have revived the interest in high-voltage direct current (HVDC) multi-terminal networks.
Alan J. Watson   +16 more
core   +2 more sources

Stabilization of gas-filled surge arrester’s characteristics by use of ionizing radiation [PDF]

open access: yesNuclear Technology and Radiation Protection, 2012
This paper investigates the stabilization of electrical discharges in gases by means of external ionizing radiation. Discharges in a gas-filled surge arrester model were studied in both passive and active regimes of the device. An originally developed
Brajović Dragan V.   +4 more
doaj   +1 more source

Comparative Studies on Degradation of Varistors Subjected to Operation in Surge Arresters and Surge Arrester Counters [PDF]

open access: yesArchives of Metallurgy and Materials, 2020
The paper presents results of investigation of microstructure and micro-hardness for material of ZnO varistors applied to 110 kV surge arrester and surge arrester counter.
P. Papliński   +6 more
doaj   +1 more source

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