Results 51 to 60 of about 1,997 (175)

Influence of non uniformity of pollution thickness on insulator flashover under impulse voltage

open access: yes, 2010
International audienceThis paper is aimed at the influence of the linear non uniformity of pollution layer on critical flashover voltage Vcri of polluted insulator under lightning impulse voltage.
M. El-A. Slama   +5 more
core   +1 more source

Estimation of positive polarity switching surge flashover voltage of compact transmission lines

open access: yes, 1999
This project evaluates the electric field characteristics of air gaps occurring within the tower and insulation structure of a compact transmission line using ANSYS and estimates the flashover voltage and required clearances using an already established ...
Hill, Kenneth Harvey
core  

Luminescence evolution from alumina ceramic surface before flashover under direct and alternating current voltage in vacuum

open access: yes, 2016
The luminescence evolution phenomena from alumina ceramic surface in vacuum under high voltage of direct and alternating current are reported, with the voltage covering a large range from far below to close to the flashover voltage. Its time resolved and
Bai-Peng Song   +6 more
core   +1 more source

Effect of electron beam irradiation on surface molecule and flashover voltage of epoxy composites

open access: yes
The unsatisfactory insulating properties of solid–gas interfaces seriously restrict the development of high‐voltage electrical equipment and threaten their power supply stability.
Bingnan Li   +9 more
core   +1 more source

Voltage Sag due to Pollution Induced Flashover Across Ceramic Insulator Strings

open access: yes, 2017
Voltage sag or voltage dips are significant to industrial reliability. There is a necessity to characterize the feeder level power quality (PQ) and the PQ performance among various utility companies.
Subba Reddy B, Arup Kumar Goswami
core   +1 more source

Model for polluted insulator flashover under AC or DC voltage

open access: yes, 2018
International audienceThe aim of this paper is to elaborate a model describing the different phases of flashover of high voltage insulators with continuous or discontinuous pollution deposits, in AC or DC. This model uses an equivalent electrical circuit.
Madjoudj, D.   +9 more
core   +1 more source

Variation of surface flashover voltage in SF6 with pressure

open access: yes, 1994
Surface flashover characteristics of solid spacers in a rod-plane configuration have been investigated in SF6, at pressures to 400 kPa, for switching impulse voltages to determine the effect of spacer, spacer materials and polarity of applied impulses ...
Pati, BB, Naidu, MS, Patra, KC
core  

Adaptive-Network-Based Fuzzy Inference System Application to Estimate the Flashover Voltage on Insulator

open access: yes, 2009
This paper presents application of adaptive network based fuzzy inference system (ANFIS) to estimate critical flashover voltage on polluted insulators.
Erenturk, Köksal
core   +1 more source

Investigation of the Effect of Impulse Voltage to Flashover by Using Water Jet

open access: yes, 2019
The main function of the insulators used in high voltage (HV) transmission lines is to insulate the energized conductor from the pole and hence from the ground. However, when the insulators fail to perform this insulation function due to various effects,
Mehmet Cebeci   +2 more
core   +1 more source

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