数字式漏电保护器测试仪的研究

Research on Digital Instrumentation for the Leakage Current Protector

一种可同时测量漏电保护器的漏电动作电流以及在这一电流下保护器开关的分断时间的数字式测试仪，其电流、时间测量范围分别为２．５～５００ｍＡ、０～９．９９９ｓ，测量精度取决于电流互感器的转换精度和放大器的线性度。

in order to make safety check and guick calibration the widely-used leakage current protector, the author develops a type of digital instrumentation which can measure the leakage action current of the leakage current protector and the breaking time of the switch under that electric current. Practice proves that the design of this instrument is reasonable since it can quickly measure the above-mentioed two indexes with sufficient precision.