CAJ | 학술논문

为研究低压、小电流、纯阻性负载下银基合金触头材料在交流400Hz的电弧侵蚀特性,通过研制的小容量可变频ASTM触头通断微机测试系统、SEM和EDAX,测量与分析了50Hz和400Hz下触头开断过程中AgNi、AgC和AgW触头材料燃弧特征值,分析了AgNi触头材料的表面形貌与微区组份,探讨了50Hz和400Hz两种交流频率下AgNi合金触头材料电弧侵蚀的成因.
위연구저압、소전류、순조성부재하은기합금촉두재료재교류400Hz적전호침식특성,통과연제적소용량가변빈ASTM촉두통단미궤측시계통、SEM화EDAX,측량여분석료50Hz화400Hz하촉두개단과정중AgNi、AgC화AgW촉두재료연호특정치,분석료AgNi촉두재료적표면형모여미구조빈,탐토료50Hz화400Hz량충교류빈솔하AgNi합금촉두재료전호침식적성인.
Using a developed ASTM contact material experimental system of small-capacity and variable frequency,the arc erosion characteristics of the Ag-based contact material at 400Hz were investigated by means of SEM and EDAX during the electric contact current make-and-break test under low voltage,pure resistive load and small current. The values of contact material arcing characteristics of AgNi,AgC and AgW,the changes of AgNi contacts materials surface profile and micro-area constituent were measured and analysed. The surface morphologies and micro-area compositions of AgNi contact material were also analysed,and the reasons of arc erosion of AgNi alloy contact material at AC 50Hz and 400Hz were discussed.