Results 31 to 40 of about 124 (111)
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
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A Comprehensive Study on the Quality of Commercially Available Medium Voltage Surge Arresters
IEEE AccessThis paper presents a comprehensive study on the quality and reliability of commercially available medium voltage surge arresters, with particular emphasis on their electrical performance and structural degradation under aging conditions.
Kuba Wojcik +8 more
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Applied Sciences, 2019 The main weakness of the half-bridge modular multilevel converter-based high-voltage direct current (MMC-HVDC) system lies in its immature solution to extremely high current under direct current (DC) line fault.
Kaipei Liu +6 more
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Results in EngineeringLightning strikes pose a growing threat to wind turbines, particularly due to climate change and technological advancements. This study focuses on the 9 MW Lamma Wind Power Plant (WPP) in Hong Kong, analyzing the effects of standard and non-standard ...
Moustafa Mohsen +3 more
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A Metal-Oxide Surge Arrester model with active V-I characteristics
Electrical Engineering in Japan, 1996 Generally a model of Metal Oxide Surge Arrester (MOSA) for numerical analysis uses a nonlinear resistance. But actual Voltage-Current (V-I) characteristics of MOSA have a hysteresis loop in the time domain like the i-Φ characteristic of a transformer and frequency dependency.
Toyohisa Hagiwara +4 more
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STUDY ON SURGE ARRESTER PERFORMANCE DUE TO LIGHTNING STROKE IN 20 KV DISTRIBUTION LINES
Teknik, 2012 Electric energy has been transmiting from power station to end user with transmission and distribution lines.Lightning strokes are problems that occure in transmission and distribution lines and make them fault when theelectric energy were transmited ...
Agung Warsito +2 more
doaj
Condition Assessment of Metal Oxide Surge Arrester Based on Multi-Layer SVM Classifier
Iranian Journal of Electrical and Electronic Engineering, 2015 This paper introduces the indicators for surge arrester condition assessment based on the leakage current analysis. Maximum amplitude of fundamental harmonic of the resistive leakage current, maximum amplitude of third harmonic of the resistive leakage ...
M Khodsuz, M Mirzaie
doaj
High VoltageThe submodule in multilevel modular converters experiences a very fast transient overvoltage (VFTO) during switch operation of gas‐insulated switchgear, which also results in overvoltage on power devices, such as thyristors and insulated gate bipolar ...
Hong Shen +7 more
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Mathematical Modeling of Passive Techniques Designed for PT Ferroresonance Suppression
International Journal of Electrical Power & Energy SystemsFerroresonance often inflicts severe damage on electrical equipment like potential transformers (PTs), surge arresters, and circuit breakers. In this paper, a new passive (P) technique using Cex (external parallel capacitor) is proposed and its ...
H. Tahami fard, S. Seyedtabaii
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IET Generation, Transmission & DistributionThe role of surge arresters is vital in power systems' protection against transient overvoltages, which can arise due to occurrences like lightning strikes or switching operations.
Masume Khodsuz +2 more
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