Lightning Protection of Overhead Power Distribution Lines
نویسنده
چکیده
Distribution lines are often located in areas with high ground flash densities, being therefore subject to lightning-caused power interruptions. This paper presents an overview of the various types of lightning overvoltages that can arise on overhead power distribution networks, as well as typical voltage waveforms. The effectivenesses of the most important methods for mitigating such overvoltages on MV and LV networks are also discussed.
منابع مشابه
Designing Concept on Lightning Protection of Overhead Power Distribution Line
The principle is shown for lightning protection of power distribution lines taking the effects of surge arresters, overhead ground wires and their combined use into consideration. Moreover an outline of a rational design method targeting direct lightning hits, induced overvoltages and backflow currents from high structures.
متن کاملApplication of Intelligent Water Drops in Transient Analysis of Single Conductor Overhead Lines Terminated to Grid-Grounded Arrester under Direct Lightning Strikes
In this paper, Intelligent water drop algorithm (IWD) is used to analyze single overhead line connected to grid-grounded arrester. In this approach, at first Norton’s equivalent circuit of the overhead line over lossy soil is computed by method of moments (MoM) and then for the problem under consideration, a nonlinear equivalent circuit in the frequency domain is proposed. Finally applying inte...
متن کاملPerformance 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...
متن کاملEvaluation of Arrester’s Protection Levels during Lightning Strikes to Overhead Medium Voltage Lines
This paper present an evaluation of overvoltages in low-voltage LV installation in buildings in cases of direct lightning strikes to overhead medium voltage lines. The study considered typical power systems with lowand medium voltage surge arresters. The calculation have been performed using the EMPTATP
متن کاملLightning - Induced Voltages on Overhead Distribution Lines : Theoretical and Experimental Investigation of related Problems and their Impact on Power Quality
Recent power quality studies have been focused on the source-identification of voltage disturbances at distribution network busses. This paper describes a method aimed at correlating indirect-lightning events with power systems relay operations, associated with voltage dips. The proposed method, based on the coordinated use of the Italian lightning location system CESI-SIRF, the Italian monitor...
متن کامل