Research on Condition-based Maintenance Technology for Power Transformer

In the basis of analyzing the importance of power transformer in substation and power system, the development process of operation and maintenance technology for power transformer are introduced in detail. And the meaning of condition parameters used for characterizing the state of power transformer were illustrated, for example, the temperature of winding hot spot, casing insulation, the micro water and gas content in oil and the vibration. Taking ATmegal 16L microcontroller as the core, the whole structure of condition monitoring system, the power supply unit and signal processing unit were detailed designed.