Category: Surge Arresters
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Application of Line Surge Arresters for Switching Over-voltages in UHV Transmission Systems
ABSTRACT: Switching overvoltages (SOV) are critical for systems operating at Ultra High Voltage (UHV) level. Pre-insertion resistors (PIR) are usually used to suppress the switching overvoltages in UHV systems. PIR are effective in suppressing SOV’s, but their shortcomings prompt utilities to explore other protection schemes. In this paper, the application of line surge arresters (LSA)…
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What leads to the failure of distribution class surge arresters and how to prevent it?
Abstract—In the distribution system, surge arresters are less expensive than the other electrical equipment installed and their presence in the system goes unnoticed during normal operation. Surge arresters are noticed only when they fail or when other system equipment fails. Distribution system surge arrester failure is interpreted in various ways by utilities and manufacturers. It…
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Surge Arresters for Ultra High Voltage Transmission System – A Review.
Abstract—Extensive research on the Ultra High Voltage (UHV) Technology has been carried out in countries like Italy, the United States of America, Russia (the former USSR), Japan, and China. In this paper features of the UHV systems developed by various utilities are discussed. Insulation Coordination studies are essential to compute the overvoltages on the system…
