Selection of Surge Arrester in Practical Engineering
نویسندگان
چکیده
منابع مشابه
Surge Arrester Simulation in Fourier Transients Programs of Transmission Systems
The importance of simulating surge arresters in fast transients programs stems from their useful property as a means of controlling switching overvoltages in EHV and UHV systems. The paper proposes a surge arrester model to be used in conjunction with a transient program based on Fourier transform technique. The validity of the proposed model is demonstrated by computational results.
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Metal-oxide surge arresters have dynamic characteristics that are significant for overvoltage coordination studies involving fast front surges. Several models with acceptable accuracy have been proposed to simulate this frequency-dependent behavior. Difficulties arise in the calculation and adjustment of the model parameters: in some cases iterative procedures are required, in others the necess...
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15 صفحه اولPerformance of Surge Arrester to Multiple Lightning Strokes on Nearby Distribution Transformer
Overhead distribution lines are prone to lightning overvoltages due to their configurations and characteristics. Metal Oxide Varistor (MOVs) arresters for many years have proven to be more advantageous than others arresters in lightning surge protection; therefore it is worthwhile to continually assess the behavior and performance of these arresters to different kind of overvoltages caused by l...
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Data on characteristics of metal-oxide surge arresters indicates that for fast front surges, those with rise times less than 8μs, the peak of the voltage wave occurs before the peak of the current wave and the residual voltage across the arrester increases as the time to crest of the arrester discharge current decreases. Several models have been proposed to simulate this frequency-dependent cha...
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ژورنال
عنوان ژورنال: Transmission and Distribution Engineering and Technology
سال: 2013
ISSN: 2325-1565,2325-1573
DOI: 10.12677/tdet.2013.24013