Study On The Characteristics Test Technology And Equipment Of Residual Current Device

With the appliance of TV, refrigerators, computers and other common household becoming more popular, the history of household electricity being equal to lighting electricity has ended. Safe use of electricity has become the focus in our daily life. However, there are some accidents because of the aging electrical distribution lines or electric shock .The economic losses caused by fire maybe several hundred million dollars every year in China. Leakage protection is an effective protector which Prevent personal electric shock and fire damage caused by electrical accidents. Along with popularizing the use of leakage protection, they prevent personal electric shock and has played a huge role in modern life.Operating character is the most important feature of leakage protection's the impact of leakage protection key indicators of quality. Therefore, in order to improve leakage protection performance and quality stability, we need to study deeply the residual operating character and test technologies of leakage protection.The experimental technology research of leakage protection to improve the detection of product, in the same time other low-voltage electrical protection class provides a reference. In this paper, due to leakage protection, operating characteristics of the test techniques for the theoretical analysis and practical exploration. First analyzing the art of state of the leaker technology, and conducting a careful study to the requirements of national standards. On the basic, I research and design the test device leakage protection hardware and software operating. We use different test methods in order to improve the accuracy of testing electronic and electromagnetic leakage protection. At the same time the introduction of the operating manual control tests to further improve the accuracy of the test.In this design, the core processor is the Advantech industrial computer, in another hand research and analysis the leakage currents and regulation aspects, data acquisition link, link logic control, motor protection circuit and other hardware aspects. In the paper, use the modular visualization as the software programming method, which based on the leakage characteristics of protection.