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The electricity data collection system of the transformer substation’s switch cubicle was proposed, which was based on the technology ARM. Realized the real-time monitoring of substation’s switch cubicle. Using S3C6410 as the processor, and designing signal conditioning circuit and AD conversion circuit .Using 3G internet to transfer the collected data. At the same time, the program flow of the μC/OS-II operation system were build. And the system was tested in some smelters . The results of the test and the transmission experiments show that, with high stability the system was good at transferring data in real-time, so it is worthy to be extended. Introduction About intelligent substation construction , in China, State Grid Corp built unified strong smart grid in the 2009 ~ 2020. Intelligent substation is the important base and support of strong smart grid equipment, device information digitization, functional integration, compact structure, state maintenance are the development direction of substation. Smart substation is the development direction of the next generation of substation, is the physical basis and requirements for the construction of smart grid. In order to realize the goal of smart grid, intelligent substation is of great significance to research and construction[1,2]. Therefore, monitoring of substation operation parameters is helpful for power supply departments to know the operation and the user substation of the electricity, make the smart grid more strong. Aiming at the development demand of smart grid, design a technology based on ARM and 3G technology in substation switch cubicle electric energy data acquisition terminal, and the related tests.

A Monitoring Data Acquisition System for Substation Using ARM And 3G