1. 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

2. 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