Partial discharge monitoring of power transformers by UHF sensors

E-lesson: Partial discharge measurement for power transformers course – e-lesson #2 – Basics of partial discharges II

In this e-lesson you will learn the basics of partial discharge measurement. Her you can get the room link.

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You will learn how to calibrate the measurement setup and the apparent charge can be measured according to IEC 60270. The selection of the measuring frequency band is presented. The influence of PD location inside a power transformer on apparent charge is shown. Different ways of PD signal processing and visualization help to interpret the PD measurement.

Keywords: partial discharge, apparent charge, IEC 60270, calibration, measuring frequency

S. Tenbohlen 300 x 300

Stefan Tenbohlen received his diploma and PhD in Engineering from the Technical University of Aachen, Germany, in 1992 and 1997, respectively. In 1997, he joined ALSTOM Schorch Transformatoren GmbH, Mönchengladbach, Germany, where he was responsible for basic research and product development. From 2002 – 2004, he was the Head of the Electrical and Mechanical Design Department. In 2004, he was appointed Professor and Head of the Institute of Power Transmission and High Voltage Technology of the University of Stuttgart, Germany. In this position, his main research fields are high voltage technique, power transmission, and electromagnetic compatibility (EMC). Prof. Tenbohlen holds several patents and has published more than 500 papers. He is a member of the IEEE, CIGRÉ, German committees of A2 (power transformers, D1 (emerging technologies), C4 (system technical performance), several international working groups.

Stefan Tenbohlen