Water tree characteristics in low-density polyethylene under power-frequency voltages with high-frequency components

Hidenori Suzuki, Yoshimichi Ohki, Yoshinobu Nakamichi, Kohji Ajiki

研究成果: Conference article査読

1 被引用数 (Scopus)

抄録

For magnetic levitation railway systems using linear synchronous motors, pulse-width-modulation inverters and polymer insulated cables are used for driving cars and feeding electricity, respectively. This implies that ac voltages with many harmonics induced by inverters are applied to cables. However, little is known about dielectric properties of polymers under such ac voltages. Therefore, water-tree characteristics have been investigated for low-density polyethylene using power-frequency ac voltages with high-frequency components. It was found that water tree grows very fast under high-frequency voltage. However, in the case of the superposed voltage, water tree does not grow so fast if the high-frequency component is not large. It is considered that the zero-crossing of the applied voltage plays an important role for the tree growth.

本文言語English
ページ(範囲)742-745
ページ数4
ジャーナルConference on Electrical Insulation and Dielectric Phenomena (CEIDP), Annual Report
2
出版ステータスPublished - 1996 12 1
イベントProceedings of the 1996 Annual Conference on Electrical Insulation and Dielectric Phenomena. Part 2 (of 2) - Millbrae, CA, USA
継続期間: 1996 10 201996 10 23

ASJC Scopus subject areas

  • 電子工学および電気工学
  • 産業および生産工学
  • 建築および建設

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