Contact and Long-Term Behavior of Current-Carrying Connections in Electrical Power Engineering

PD Dr.-Ing. habil. Stephan Schlegel has been researching the contact and long-term behavior of current-carrying connections with a focus on screw connections for more than sixteen years. As a group leader and currently as a deputy chairholder, he teaches modules on the fundamentals of electrical engineering and in the specialization of electrical power engineering, focusing on topics in high-voltage and high-current technology. Dr.-Ing. Christian Hildmann primarily focuses on the mechanical, electrical, and thermal contact and long-term behavior of current-carrying connections especially for stranded conductors. He has been a research associate at the Dresden University of Technology for fourteen years and has been leading the research group for Electrical Contacts and Connections since 2020. Dr.-Ing. Toni Israel works in the R&D Contact Technology department at Stäubli Electrical Connectors in Allschwil, Switzerland. He conducted research at the TU Dresden on the behavior of high-performance plug connections used in electrical energy and automotive technology during high-duration and short-duration loads. He teaches electric-mechanical stresses of electrical contacts and devices, with a special focus on fault currents. Dr.-Ing. Michael Gatzsche works at Hitachi Energy as R&D Principal Engineer in the Technology Center of the High Voltage Products business unit in Zurich. His work focuses on eco-efficient insulation gases and the ampacity of switchgear. Dr. Gatzsche has 10 years of experience in research, design, and application of current-carrying connections and contacts, gained through his work at TU Dresden and Hitachi Energy.

• Introduction.- Types, function, and requirements of current-carrying connections.- Contact materials.- Contact behavior of current-carrying connections.- Electric-mechanical-thermal behavior of selected current-carrying connections.- Long-term behavior of current-carrying connections.- Design of current-carrying connections.- Testing procedures.