Development of a new technology for dc-current interruption assisted by ablation of polymer micro-particles

2014 Fiscal Year Final Research Report

• Project/Area Number: 25630108
• Research Category: Grant-in-Aid for Challenging Exploratory Research
• Allocation Type: Multi-year Fund
• Research Field: Power engineering/Power conversion/Electric machinery
• Research Institution: Kanazawa University
• Principal Investigator: TANAKA YASUNORI 金沢大学, 電子情報学系, 教授 (90303263)
• Co-Investigator(Kenkyū-buntansha): UESUGI Yoshihiko 金沢大学, 電子情報学系, 教授 (90213339) ; ISHIJIMA Tatsuo 金沢大学, サステナブルエネルギー研究センター, 准教授 (00324450) ; HORIBE Hideo 大阪市立大学, 工学研究科, 教授 (00372243)
• Project Period (FY): 2013-04-01 – 2015-03-31
• Keywords: アーク / 遮断器 / ポリマー / アブレーション

Outline of Final Research Achievements

We fundamentally investigated a new technique for dc-current interruption assisted by ablation of polymer micro-particles ejected from the polymer bulk wall. The polymer materials are widely used in a circuit breaker for insulation. They often contact the arc plasma during high-current interruption, resulting in polymer ablation. We found that polyamide materials eject spallation microsized particles, which can penetrate the arc deeply. The present work investigated spallation occurrence due to water absorption.

Free Research Field

電力・電気機器