Intelligent grid expansion – RheinEnergie AG, Germany Challenges Aged, highly intermeshed distribution network requiring major investment Alternative modernization concept to conventional network expansion Retention of high supply reliability Solutions Network monitoring and fault management Design and set up of intelligent primary technology Distributed automation and control units with self-healing functions – self-healing grid Commissioning of use of existing copper communication lines Benefits Retention and further improvement of supply reliability Flexible adaption and expansion options via distributed automation and control units Proven alternative concept to conventional network expansion

Intelligent grid expansion – RheinEnergie AG, Germany Customer environment: Supply of 16 distribution substations via two circuit breaker cubicles from the Chorweiler transformer substation separated by normally open points Discontinued communication channels via twisted telephone cable from distribution substation to transformer substation Usecases: „Automated switching for isolation and service restoration“ Implementation: Preparation of primary technology for using control and automation components Control and Automation: distributed communication between six distribution network automation units (7SC80) via IEC61850 Central information interface to network control center via SICAM TM Features: Distributed automation units 7SC80 with distributed logic for self-healing outage management Fault location Fault isolation Service restoration