MV ring-main systems
Power systems are constructed can be operated as radial systems, ring-main systems or meshed systems. This technical article deals with nine most common topologies of ring-main systems, their characteristics and applications. Ring-main systems are common in the medium voltage range.
Medium Voltage Ring Main Systems In a Nutshell (on photo: Siemens MV ring main unit type 8DJH; Credit: etb-karlsruhe.de)A large variety of ring-main systems are in operation with respect to permissible loading of the lines, reserve capability against outages, different arrangement of the feeding station and supply reliability.
Let’s discuss about characteristics of nine main topologies ring-main systems:
- Ring-Main System – Simple Topology
- Ring-Main System with Remote Station (Without Supply)
- Ring-Main System with Reserve Line
- Ring-Main System with Feeding Remote Station
- Ring-Main System as Tuple System
- Ring-Main System with Cross-Link
- Ring-Main System with Base Station
- Special-Spare Cable System
- Double-T Connection
