During the service life of a transformer, a large amount of data is generated including master data, measured values from inspections and tests, and continuous sensor measurements. While this broad data spectrum provides valuable insights into the condition of a transformer, in practice this information is often distributed across various systems and platforms, making it difficult to maintain an overview and carry out holistic assessments. And not only is the data distribution a challenge, but also its correct interpretation. This is precisely where MR's TESSA® APM platform offers important assistance.