What is online transformer oil monitoring in the context of power transformers?

Online transformer oil monitoring in the context of power transformers refers to the continuous assessment of the physical and chemical properties of transformer oil while the transformer is in operation. This technology utilizes sensors to measure parameters such as temperature, moisture content, dissolved gases, and acidity. By providing real-time data, online transformer oil monitoring helps in early detection of potential issues, ensuring the reliability and longevity of power transformers.