Results 21 to 30 of about 3,842 (216)
Tower grounding improvement versus line surge arresters: comparison of remedial measures for high-BFOR subtransmission lines [PDF]
, 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
Various Methods for Measurement of Resistive Leakage Current of Metal Oxide Surge Arrester
International Journal of Scientific Research in Science Engineering and Technology, 2021 Metal Oxide Surge Arrester (MOSA) does not require any ordinary maintenance. But MOSA is get affected from ageing due to the effect of discharging impulse currents, uneven heating and internal partial discharges.
Samruddhi Shaha +1 more
semanticscholar +1 more source
Modelling of Low-Voltage Varistors’ Responses under Slow-Front Overvoltages
Electronic Materials, 2023 In this study, commercially low-voltage MOVs are exposed to switching surges to analyse and model the relationship between the number of surges and the MOV grain barrier height response.
Lutendo Muremi +2 more
doaj +1 more source
Energies, 2018 The voltage distribution along the non-linear resistance of metal oxide surges is of great importance for their proper operation, since the non-uniform potential distribution results in higher thermal stresses of the varistor discs near the high voltage ...
Christos A. Christodoulou +3 more
doaj +1 more source
Alleviation of the transients induced in large photovoltaic power plants by direct lightning stroke
Ain Shams Engineering Journal, 2023 Lightning strokes are considered the most common passively effective cause on the photovoltaic (PV) power plants compared to the other internal faults. In this paper, a 1 MW solar PV grid-connected power plant was studied.
Abdelrahman Said +3 more
doaj +1 more source
Degradation of metal oxide surge arresters under simulated natural conditions [PDF]
ACE '90. Proceedings of [XVI Annual Convention and Exhibition of the IEEE In India], 2005 The degradation of metal oxide surge arresters (MOSA) under continous operating voltage (C.O.V) with time, is a well known fact. But the contribution of transient overvoltages in the form of lightning surges, switching surges etc.-against which the arrester is used as a protection device, to the arrester degradation has not been studied much.
Vipin, PM +3 more
openaire +2 more sources
A wireless system for monitoring leakage current in electrical substation equipment [PDF]
, 2016 In this paper, the design and the development of a remote system for continuous monitoring of leakage currents and ground currents in high voltage electrical substations are proposed.
Bogias, A. C. +4 more
core +1 more source
Energies, 2017 The appropriate circuit modeling of metal oxide gapless surge arresters is critical for insulation coordination studies. Metal oxide arresters present a dynamic behavior for fast front surges; namely, their residual voltage is dependent on the peak value,
Christos A. Christodoulou +4 more
doaj +1 more source
Current interruption tests of HVDC circuit‐breakers: Requirements, methods and a testing case
IET Generation, Transmission & Distribution, 2022 Development towards HVDC grids is drawing intense development of HVDC circuit‐breakers (CBs). The increasing rated voltage and capacity requires HVDC CBs with excellent performance to be installed and comprehensive tests on HVDC CBs are indispensable ...
Shenli Jia +6 more
doaj +1 more source
Electric field measurements around a metal oxide surge arrester [PDF]
2010 International Conference on High Voltage Engineering and Application, 2010 Aim of the current work is the experimental study of the electric field distribution around a medium voltage metal oxide gapless polymeric housing surge arrester, since the study and the knowledge of the electric field around an arrester can be useful for diagnostic tests and design procedures.
C.A. Spanias +3 more
openaire +1 more source