The Thermal Analysis And Experimental Method Of Electric Connector In Power Equipment Cabinet

Electric Connection exists in all electronic equipment. And their reliabilities are crucial factors which affect the normal operation of these equipments. Further, many factors will affect the electric connection reliability, such as fretting phenomenon, sliding phenomenon, and corrosion phenomenon. In these phenomena, many external factors will have contribution on the final results, including dust, pressure, humidity and temperature. The influence of temperature is particularly evident in a large current, multi-load working environment. Normally, the working current of a real power cabinet is more than one thousand amperes. Therefore, the power cabinet’s internal temperature is the main reason affecting the electronic contact.Temperature Testing Experimental Platform is based on similar system principal, whose function is to simulate the working condition of the copper bars in the power cabinet and test the temperature of the copper bars. The platform provides a reasonable, flexible and scalable mechanical support, and tests the temperature from multi channel using data acquisition card. In addition, a scalable design plan has been proposed to expanse the collection points without replace the acquisition card.This paper introduces the working principal and overall design of the Temperature Testing Experimental Platform, makes analysis and checking calculation of the key modules in the mechanical structure and gives the analysis, design plans and detailed explanations of the various modules of the data acquisition program. In the last parts, an experiment using the Temperature Testing Experimental Platform has been introduced, which verified the usability of this platform. The analysis of the experimental results has been described. At last, the future research program and platform improvements will be proposed.