Results 21 to 30 of about 2,963 (259)

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

A low leakage current (Co, Mn, Ta)-SnO2 varistor tailored by doping with chromium for power grids

open access: yesResults 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
Hongfeng Zhao   +4 more
doaj   +1 more source

Condition monitoring of electrical assets using digital IRT and AI technique

open access: yesJournal of Electrical Systems and Information Technology, 2018
In this paper, an advancement approach considering an infrared thermography methodology is taken into account for pronouncing and diagnosing the fault persisting in the electrical equipment.
Deepak Kumar, M.A. Ansari
doaj   +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

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

Modelling 132 kV substation for surge arrester studies [PDF]

open access: yes, 2008
Insulation coordination models are an essential part of power system studies and are used to determine the performance of a transmission line or substation.
Ab Kadir, Mohd Zainal Abidin   +2 more
core   +1 more source

Investigation of Diagnostic Techniques for Metal Oxide Surge Arresters [PDF]

open access: yes, 2005
Gapless metal oxide surge arresters(MOSA)have been available in the market for many years since they were first introduced in the 1970's. The aim of this study is to investigate some reliable diagnostic techniques to assess the condition of a metal oxide
Mardira, Karl P.   +2 more
core   +1 more source

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

Perbandingan Pengaruh Penempatan Arrester Sebelum dan Sesudah Fco sebagai Pengaman Transformator 3 Phasa terhadap Gangguan Surja Petir di Penyulang Pandean Lamper 5 Rayon Semarang Timur [PDF]

open access: yes, 2014
Azis Nurrochma Wardana, Arkhan Subari, in paper comparison of the effect of placement arrester before and after FCO as safety of 3 phase transformator from interruption of lightning at Pandean Lamper 5 Feeder, East Semarang explain that problem of the ...
Subari, A. (Arkhan)   +1 more
core  

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

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