Transformer Oil Micro Water Content Online Monitoring Module Design Based on Linux Platform

In order to improve the performance of on-line monitoring of micro water in transformer oil, a structured and modular scheme is proposed for system software design. ARM9 embedded microprocessor is adopted in the hardware to realize the online data acquisition and processing of micro water information, through the conversion of the sensor output signal. Then the software monitoring process of Linux platform is designed, and the directory structure of embedded operating system, porting target platform and Linux kernel source code is provided. The experiment on the test transformer shows that the sensor works normally and it can be comprehensively implemented to solve the problem of online monitoring of micro water content in transformer oil.