Results 21 to 30 of about 2,728,275 (121)
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
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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
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Resistive component extraction of leakage current in metal oxide surge arrester: A hybrid method
, 2021 Leakage current based condition monitoring is the most widely used method to ascertain the ageing of on-site Metal Oxide Surge Arrester (MOSA). The extraction of resistive component of leakage current is necessary for the exact health diagnostic of ...
Abdul Malek, Zulkurnain +2 more
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A Simplified Lightning Model for Metal Oxide Surge Arrester [PDF]
, 2002 Lightning strike has been one of the major factors that lead to failure of electrical power systems. In recent years, metal oxide surge arrester has been widely used and it is now an essential item in the insulation coordination for power systems based ...
Saha, T.K., Mardira, K. P.
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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
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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
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Performance improvement of MO surge arrester using high gradient arrester block against VFTOs [PDF]
, 2019 It is well known that the metal oxide surge arrester is inoperative against very fast transients overvoltages (VFTOs) because of its strong stray capacitive effect.
Raju, Kannadasan; Sri Venkateswara College of Engineering
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Analysis of Zinc Oxide (ZnO) Surge Arrester Connected to Various Ground Electrodes
, 2021 This paper presents impulse tests results on a zinc oxide (ZnO) surge arrester connected to four ground electrodes, with its resistance values ranging from 17 Ω to 104 Ω.
Hanis Hamizah Hizamul-Din +3 more
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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
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Calculation and protection on the lighting intruding waves of 550 kv GIS substation
The Journal of Engineering, 2018 Electromagnetic Transient Programme has been used to calculate the lightning intruding wave of 550 kV GIS substation. The effects of mode operation, surge impedance and length of cable have been considered in the process of calculation.
Dongpeng Sui +5 more
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