For over 90 years, Allgäuer Überlandwerk GmbH (AÜW) has been reliably supplying electricity to more than 87,000 customers in the Allgäu region. The coverage area of AÜW is bordered in the west by the coverage area of Vorarlberger Kraftwerke (VKW), an Austrian energy provider that also supplies across borders to many areas in Westallgäu. In order to obtain or supply electric energy between the two networks, a phase shifter transformer with an output of 80 MVA was commis-sioned at the end of the 1990s. After over 15 years, comprehensive retrofit measurements have now been implemented using Maschinenfabrik Reinhausen (MR) products and expertise.
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