Research on arc erosion of silver-based alloy contact materials under low voltage, resistive load and small current at 400 Hz and 50 Hz
- Author:
Jing LI
;
Zhiying MA
- Publication Type:Journal Article
- Keywords:
silver-based alloy;
low voltage;
400 Hz;
50 Hz;
contact material;
arc erosion
- From:
Journal of Pharmaceutical Analysis
2009;21(3):149-154
- CountryChina
- Language:Chinese
-
Abstract:
By using a self-developed IF power and a ASTM contact material experimental system of small-capacity and variable frequency, the value of arcing characteristics and the welding force of the silver-based contact material are acquired under low voltage, resistive load and small current at 400 Hz and 50 Hz. By means of an electricity-ray analytical balance, SEM and EDAX, the weighing values of the contact materials and the changes of AgCdO, AgNi, AgC and AgW contact material surface profile and micro-area constituent are obtained and analyzed. The arc erosion causes of silver-based alloy contact materials at 400 Hz and 50 Hz are also discussed.
