A Sensor System for Detecting and Localizing Partial Discharges in Power Transformers with Improved Immunity to Interferences.

The paper reports on the solution, principles, and application results related to a system for diagnosing main transformers in power plants via the radiofrequency method. The subject of the diagnostics is the occurrence of partial discharge activity in transformers. The technical solution of the system is characterized in the introductory section of the article.