LIGHTNING INDUCED VOLTAGES ON POWER DISTRIBUTION LINES-OBSERVATION RESULTS AT FUKUI STEAM POWER SATATION-
نویسندگان
چکیده
منابع مشابه
Lightning - 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...
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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 overvolta...
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Models for the calculation of lightning-induced voltages on distribution networks, should be able to take into account the presence of shielding wires and/or neutral conductors and of their relevant groundings. The paper deals with the estimation of the influence of these groundings with particular reference to the grounding electrode model on the calculated values of the lightninginduced volta...
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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 کاملInduced Disturbance in Power Network by Lightning
In this work the transient analysis of a power network excited by indirect lightning is performed directly in time domain. Using the FDTD, we calculate induced currents and voltages in each node for a three-phase power network. The topological analysis of the network where each element (power line and lumped charge) is considered, allows deducing the matrix equation. In this electrical network ...
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ژورنال
عنوان ژورنال: Journal of Atmospheric Electricity
سال: 1992
ISSN: 0919-2050
DOI: 10.1541/jae.12.71