Dynamic Characteristics of Grounding Resistance of Transmission Tower Footing in Very-Large-Impulse-Current Test

• HARA Takehisa

  Kansai University

• YASUDA Yoh

  Kansai University

• IKEDA Keiich

  Kansai Electric Power Co., Inc.

• SONOI Yasuo

  Kansai Electric Power Co., Inc.

• KAWABATA Kin-ya

  Kansai Electric Power Co., Inc.

• FUKUZONO Hidenobu

  Kansai Tech Corp.

• SEKIOKA Shozo

  Kansai Tech Corp.

Bibliographic Information

Other Title

• 衝撃大電流領域における鉄塔塔脚接地抵抗の動特性
• ショウゲキ ダイ デンリュウ リョウイキ ニ オケル テットウトウ キャク セッチ テイコウ ノ ドウトクセイ

Abstract

Grounding resistance of a transmission tower in Japan is commonly required to be less than 10 ohm to avoid lightning back flashover accident. However, it takes huge amount of cost to improve the resistance to the recommended value especially in the mountainous region. In order to reduce the cost of these works, the authors have investigated on flashover simulation with various grounding conditions. The paper deals with experimental results on grounding resistance of an actual 500-kV transmission tower footing and its downsized models. After brief review of necessity and scaling rule of the downsizing, we discuss dynamic characteristic of grounding resistance imposing very large current of 30kA.

Journal

• IEEJ Transactions on Power and Energy

  IEEJ Transactions on Power and Energy 122 (7), 863-869, 2002

  The Institute of Electrical Engineers of Japan

Keywords

• 接地抵抗
• 500kV送電鉄塔
• 土中放電
• 高抵抗地盤

Details

• CRID: 1390001204603707392
• NII Article ID: 10008844157
• NII Article ID: 130006840400
• NII Book ID: AN10136334
• DOI: 10.1541/ieejpes1990.122.7_863
• ISSN: 13488147
• ISSN: 03854213
• NDL BIB ID: 6204862
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6204862
• Web Site: https://www.jstage.jst.go.jp/article/ieejpes1990/122/7/122_7_863/_pdf
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed