自动转换开关电器接触电阻的测量  

Measurement of Contact Resistance for Automatic Transfer Switching Equipment

作　　者：马照祥[1] 栗惠[1] 曲德刚[1] 

机构地区：[1]上海电器科学研究所(集团)有限公司,上海200063

出　　处：《低压电器》2007年第9期48-50,共3页Low Voltage Apparatus

摘　　要：介绍了利用大电流压降法测量自动转换开关动、静触头间接触电阻的方法。通过芯片AD7862同时采集标准电阻与接触电阻的电压信号,可消除恒流源波动对测量结果的影响。检测结果表明,该方法简单、有效,达到了比较高的精度。A method to measure contact resistance of dynamic and static contacts for automaic transfer switching equipment by voltage drop with high current was introduced. The voltage signals of standard resistance and contact resistance were collected simultaneously by AD7862 chip, so the effect against measurement result for constant current source was eliminated, The measurement result shows that the method is simple and effective, with higher precision.

关 键 词：自动转换开关 接触电阻 双路采集 

分 类 号：TM501.3[电气工程—电器]