Results 11 to 20 of about 124 (111)
Modern electrical diagnostics for metal oxide surge arresters [PDF]
IEEE/PES Transmission and Distribution Conference and Exhibition, 2003 The aim of this study is to propose simple and reliable techniques to assess the condition of metal oxide arrester based on the dielectric response techniques. A number of modern electrical diagnostics for Metal Oxide Surge Arrester (MOSA) are discussed in this paper. The techniques included return voltage, decay voltage and polarisation/depolarisation
Mardira, K. P., Saha, Tapan K.
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Investigation of diagnostic techniques for metal oxide surge arresters [PDF]
IEEE Transactions on Dielectrics and Electrical Insulation, 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 surge arrester when subjected to severe lightning strikes in the field. A number of non-destructive
Mardira, Karl P. +2 more
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Characteristics and possibilities of software tool for metal-oxide surge arresters selection [PDF]
Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2012 This paper presents a procedure for the selection of metal-oxide surge arresters based on the instructions given in the Siemens and ABB catalogues, respecting their differences and the characteristics and possibilities of the software tool.
Đorđević Dragan +2 more
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Optimization of dynamic MOSA model parameters using ATP/EMTP software tool [PDF]
Zbornik Radova: Elektrotehnički Institut "Nikola Tesla", 2017 This paper demonstrates the procedure for estimating parameters of a dynamic metal-oxide surge arrester model by using a genetic algorithm, implemented in ATP/EMTP graphic preprocessor (ATPDraw) optimization module.
Jasika Ranko +3 more
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A Review of Current Issues in State-of-Art of Wind Farm Overvoltage Protection
Energies, 2011 This paper elaborates on several important outstanding issues in the state-of-art of overvoltage protection selection for modern wind farms. The lack of experience with this still-new technology, together with the inherent complexity of wind farm ...
Ranko Goić, Petar Sarajčev
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IET Science, Measurement & Technology, 2021 This paper presents an advanced technique based on cross‐Stockwell transform (XST) and sparse autoencoder to predict the surface contamination severity of metal oxide surge arrester (MOSA) employing leakage current signal.
Arup Kumar Das +2 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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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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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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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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