More than 400 customers, partners and industry leaders from over 30 countries gathered at CWIEME Berlin 2026 as Reinhausen celebrated the 100th anniversary of the Jansen patent, an innovation that helped shape modern transformer technology and power systems around the world. 

The announcement 

CWIEME Berlin 2026 provided the backdrop for a major industry milestone as Reinhausen celebrated 100 years since the filing of the Jansen patent, the invention that established the resistor-type tap changer as a key component in modern power networks. 

Held at Messe Berlin, the celebration brought together more than 400 customers, partners and industry experts from over 30 countries. The event recognised not only a century of engineering innovation but also the collaboration between transformer manufacturers, grid operators and technology providers that continues to support reliable electricity networks worldwide. 

Throughout the event, speakers reflected on the growing demands being placed on power systems as electrification accelerates across industries and regions. Discussions focused on grid stability, energy security and the role of transformer technologies in supporting the transition to a more electrified future. 

The gathering highlighted the importance of long-term partnerships across the value chain and reinforced the shared commitment required to address the challenges facing global energy infrastructure. 

Why it matters 

As electricity demand continues to grow and power networks become increasingly complex, collaboration across the industry has never been more important. This milestone celebration demonstrated how manufacturers, utilities, technology providers and researchers are working together to build resilient energy systems and shape the future of the power sector. 

CWIEME Berlin remains where the entire industry comes together to exchange knowledge, strengthen partnerships and drive progress across the global transformer, motor and energy ecosystem.