Dielectric breakdown properties of low-density polyethylene under power-frequency voltages with high-frequency components

Hidenori Suzuki, Yoshimichi Ohki, Yoshinobu Nakamichi, Kohji Ajiki

研究成果: Paper査読

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, breakdown characteristics have been investigated for low-density polyethylene using power-frequency ac voltages with high-frequency components. It was found that breakdown voltage decreases as the frequency component increases. However, the number of zero-crossings of the applied voltage, which is very influential in the water-tree length, does not seem to play an important role in the dielectric breakdown.

本文言語English
ページ203-206
ページ数4
出版ステータスPublished - 1996 12 1
イベントProceedings of Joint Conference: 1996 Asian International Conference on Dielectrics & Electrical Insulation Diagnosis, 96'AICDEI & 4th-JCCEID - Xi'an, China
継続期間: 1996 10 81996 10 11

Other

OtherProceedings of Joint Conference: 1996 Asian International Conference on Dielectrics & Electrical Insulation Diagnosis, 96'AICDEI & 4th-JCCEID
CityXi'an, China
Period96/10/896/10/11

ASJC Scopus subject areas

  • Engineering(all)

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