Title :
Spectroscopic analysis for the arc quenching effect of ablation gas on arc immobility phenomena
Author :
Aoyama, Y. ; Odada, T. ; Takayama, S.
Author_Institution :
Matsushita Electr. Works, Osaka, Japan
Abstract :
Arc immobility phenomena at contact openings are investigated. Effects of contact opening velocity, magnetic field, and contact material on arcs immobility time are examined. Particle compositions of arcs contaminated by metal vapor and ablation gas from polymeric insulating materials are calculated, and a spectroscopic analysis of the arc is presented. Arc immobility phenomenon are related to the amount of metal vapor in the arc. The arc ignited by evaporation of a metal bridge is so metallic at initial stages that the arc temperature is low and the arc radius is long. Arc temperature increases by the admixture of surrounding gas into an arc column and arc shrinkage occurs. Consequently, the arc is easily driven. The arc quenching effect of ablation gas from insulating materials is also investigated
Keywords :
circuit-breaking arcs; spectrochemical analysis; ablation gas; arc column; arc immobility phenomena; arc quenching effect; arc radius; arc shrinkage occurs; arc temperature; arcs immobility time; circuit breaking arcs; contact material effects; contact opening velocity; contact opening velocity effects; contact openings; ionic compositions; magnetically driven arcs; metal bridge vaporization; metal vapor arcs; polymeric insulating materials; spectroscopic analysis; Bridges; Composite materials; Gas insulation; Inorganic materials; Magnetic analysis; Magnetic materials; Plastic insulation; Polymers; Spectroscopy; Temperature;
Conference_Titel :
Electrical Contacts, 1990. Proceedings of the Thirty-Sixth IEEE Holm Conference on ... and the Fifteenth International Conference on Electrical Contacts
Conference_Location :
Montreal, Que.
DOI :
10.1109/HOLM.1990.113063
