A Physical Model for PD in Tree Channel and its Effects on Tree Growth

• Wu Kai

  Nagoya University Xi'an Jiaotong University

• Suzuoki Yasuo

  Nagoya University

• Mizutani Teruyoshi

  Nagoya University

• Xie Hengkun

  Xi'an Jiaotong University

• Xu Chuanxiang

  Xi'an Jiaotong University

Bibliographic Information

Other Title

• Physical Model for PD in Tree Channel a

Abstract

A model for partial discharge (PD) propagation in a single channel of an electrical tree is proposed. PD is induced by the high field near the needle tip, then propagates along the channel by field enhancement due to charge injection by PD, and stops propagating when the field becomes less than a certain value due to field divergence. This model suggests that the field distribution and the tree growth process are closely related to the behavior of PD. By considering the influences of gas pressure and the applied-voltage frequency on the behavior of PD, various phenomena of tree growth, such as the bush formation under higher gas pressure and low frequency, are qualitatively explained. This model also suggests a relation between PD and the fractal nature of treeing breakdown.

Journal

• IEEJ Transactions on Fundamentals and Materials

  IEEJ Transactions on Fundamentals and Materials 118 (9), 1004-1010, 1998

  The Institute of Electrical Engineers of Japan

Keywords

• electrical tree
• partial discharge (PD)

Details

• CRID: 1390282679574762496
• NII Article ID: 130006838091
• NII Article ID: 10004440593
• NII Book ID: AN10136312
• DOI: 10.1541/ieejfms1990.118.9_1004
• ISSN: 13475533
• ISSN: 03854205
• NDL BIB ID: 4545617
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4545617
• Web Site: https://www.jstage.jst.go.jp/article/ieejfms1990/118/9/118_9_1004/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed