Study on Preserving Public Security of Installing 22kV Distribution Equipment on Pavements.

• Murata Koichi

  Tokyo Electric Power Co.

• Oka Keisuke

  Tokyo Electric Power Co.

• Uemura Satoshi

  Central Research Institute of Electric Power Industry

• Ariga Yasuo

  Denryoku Tech Co.

Bibliographic Information

Other Title

• ２２ｋＶ路上機器施設における保安対策の実験的検証
• 22kV ロジョウ キキ シセツ ニ オケル ホアン タイサク ノ ジッケンテキ ケンショウ

Abstract

To cope with restructuring of electricity market, application of 22kV distribution systems to areas with high load density, is promising. To expand them, it is important to install 22kV distribution equipment on pavements and lots without fences. On the other hand, the neutral grounding method is expected for the 22kV distribution equipment in terms of rationalization of insulation. In this case, one line-to-ground fault current will be large. Therefore, to make safety of people, it is essential to decrease the contact voltage.<br>In this paper, we will perform the simulation of current distribution in the case of one line-to-ground fault and study the security of human from the viewpoint of both step voltage and contact voltage. We will also clarify that we can lower the contact voltage by grounding mutually insulated inner box and outer box separately. Then we will propose the improved grounding method.

Journal

• IEEJ Transactions on Power and Energy

  IEEJ Transactions on Power and Energy 123 (1), 28-36, 2003

  The Institute of Electrical Engineers of Japan

Keywords

• 22 kV distribution systems
• one line-to-ground fault
• step voltage
• contact voltage

Details

• CRID: 1390001204598833024
• NII Article ID: 10010116460
• NII Book ID: AN10136334
• DOI: 10.1541/ieejpes.123.28
• ISSN: 13488147
• ISSN: 03854213
• NDL BIB ID: 6421581
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6421581
• Web Site: http://www.jstage.jst.go.jp/article/ieejpes/123/1/123_1_28/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed