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http://dx.doi.org/10.4313/JKEM.2010.23.1.061

A Study on the Measurement of Footing Resistance of Transmission Towers with Overhead Grounding wires  

Lee, Won-Kyo (한국전력공사 전력연구원)
Choi, Jong-Kee (한국전력공사 전력연구원)
Lee, Young-Woo (한국전력공사 전력연구원)
Choi, In-Hyuk (한국전력공사 전력연구원)
Kim, Kyung-Chul (홍익대학교 산업기술연구소)
Publication Information
Journal of the Korean Institute of Electrical and Electronic Material Engineers / v.23, no.1, 2010 , pp. 61-64 More about this Journal
Abstract
Footing Resistance of a 154 kV transmission towers in korea is commonly required to be less than 15 ohm to avoid lightning back-flashover accident. The periodic measurement of Footing Resistance is important to verify that the grounding performance of the towers has been maintained good. Towers are electrically connected in parallel with overhead grounding wire, therefore footing resistance of each tower will be measured after disconnecting the overhead ground wires from the towers. however, In this paper, three direct measurement methods of footing resistance are presented. There are very useful methods without disconnecting overhead ground wires from the tower under measurement. They are compared in KEPCO 154 kV transmission towers. The experimental results describe performances of them.
Keywords
Footing resistance; Ground resistance; Back-flashover;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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