Break Arc Characteristics of AgSnO2 Contact Pairs at Contact Opening Speeds up to 200mm/s in DC Load Conditions Under External Magnetic Field Application

摘要：

　　Break operations of AgSnO2 contact pairs were conducted in a DC inductive circuit (L=5.7mH) at 14V-11A and in a DC resistive circuit at 14V-13A under different contact opening speeds up to 200 mm/s and with/without external magnetic field application in uncontrolled laboratory atmosphere, and break arc voltage waveforms were observed.After the experiments, averages for total arc durations as well as metallic phase and gaseous phase (when observed) durations were calculated at each condition.The results show that increases in the contact opening speeds lead to reductions in metallic phase durations in almost inverse proportion relationship, while application of external magnetic field causes gaseous phases to become shorter.

关键词： Electrical contacts Break arc Magnetic field Contact opening speed Metallic phase Gaseous phase

作者: Makoto Hasegawa Seika Tokumitsu

作者单位: Department of Opto-Electronic System Engineering Chitose Institute of Science and Technology, Chitose, Hokkaido, 066-8655,Japan

会议类型: 国际会议

会议名称: The 6th Intrenational Conference on Reliability of Electrical Products and Electrical Contacts(第六届电工产品可靠性与电接触国际会议)

会议地点: 江苏常熟

会议语种:英文

页码: 11-15

在线出版日期: 2017-04-18（万方平台首次上网日期，不代表论文的发表时间）