Title :
Analytical study on prevention methods for distribution arrester outages caused by winter lightning
Author :
Nakada, K. ; Yokoyama, S. ; Yokota, T. ; Asakawa, A. ; Kawabata, T.
Author_Institution :
Central Res. Inst. of Electr. Power Ind., Tokyo, Japan
fDate :
10/1/1998 12:00:00 AM
Abstract :
The effectiveness of lightning protection methods, such as lowering the grounding resistance and reducing the installation interval of surge arresters, for preventing damage to arresters on power distribution lines caused by direct lightning strokes in winter is investigated. Furthermore, several countermeasures for arrester outages which occur in spite of the installation of an overhead ground wire are studied quantitatively. The main results are as follows: (1) the installation of an additional overhead ground wire is more effective in preventing damage to arresters caused by winter lightning than increasing the withstand capability of arresters, by a factor of two; (2) and lowering the grounding resistance of arresters to 30 Ω is not effective in reducing the number of arrester outages
Keywords :
arresters; distribution networks; lightning protection; power system protection; direct lightning strokes; distribution arrester outages; grounding resistance lowering; lightning protection methods; overhead ground wire; surge arresters installation interval reduction; winter lightning; Arresters; Electric resistance; Grounding; Lightning protection; Power & Energy Society; Power distribution lines; Printing; Surge protection; Voltage; Wire;
Journal_Title :
Power Delivery, IEEE Transactions on
