Vibroacoustic Monitoring of On-Load Tap-Changers

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Hosted by: Karsten Viereck and Tobias Gruber / Free

On-load tap-changers are among the most important and critical components of power transformers. For this reason, it is crucial for grid operators to know their condition at any time. Thanks to our experience gained over 20 years of tap-changer monitoring, we have developed a unique online diagnostic tool: MSENSE® VAM.

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This stands for vibroacoustic measurement and can be used universally for the diagnostics of all types and brands of OLTCs. In this session we will present the technology, the current state of science and the benefits of using VAM for OLTC. Furthermore, we will present an outlook on how technology can be used to monitor the active part of a power transformer.

Keywords: monitoring, vibroacoustic, OLTC

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About the author

Dr. Karsten Viereck

Maschinenfabrik Reinhausen

Director of Technology Automation at Maschinenfabrik Reinhausen

Scientific background

Dr. Viereck studied electrical engineering at the Technical University of Dresden. In 1992, he completed his doctorate on the topic of “Use of sensors in power transformers” at the same university.

Professional background

Before joining MR in 1997, Dr. Viereck was employed at the AEG TRO transformer factory in Berlin for several years. As a senior project manager, he was involved in the introduction of the first monitoring systems for power transformers on the German market.

He was also the head of MR’s electronics development for 10 years. In the following years, he worked in Corporate Technology and Power Electronics R&D, and he currently holds the position of Technology Automation Director.

Tobias Gruber