Development of an On-line State Monitoring and Fault Diagnosis System for Power Transformer

摘要

A new fault diagnosis model combining the characteristic gas in oil with temperature feature in key locations for power transformer is put forward, which can improve greatly the fault diagnosis accurate for the power transformer compared with only using characteristic gas as criterion. In order to improve the real-time, reliability and stability, an embedded system based on ARM and DSP processor is designed and developed. The embedded system design scheme, its each part design and the system software design are all introduced in this paper.