Telecommunication independent "self-healing" M.T. cable distribution network

• Published in: 22nd International Conference and Exhibition on Electricity Distribution (CIRED 2013) p. 0275
• Main Authors: Nikitakis, S, Argyriou, G
• Format: Conference Proceeding
• Language: English
• Published: Stevenage, UK IET 2013
• Subjects: Distribution networks; Power cables; Power system management, operation and economics; Protection apparatus; Switchgear; Telecommunication applications; telecommunication breakdown; DMS-SCADA system; fault diagnosis; medium voltage cable distribution grid; self-healing protection; fault location; smart power grids; vacuum circuit breakers; fault isolation; power distribution protection; automatic network reconfiguration; vacuum circuit breaker; smarter RMU microprocessor; telecommunication networks; power cables; SCADA systems; single breaker auto-loop-sectionalizing fuse-less smart RMU; telecommunication independent self-healing M.T. cable distribution network; automatic fault location
• ISBN: 1849197326; 9781849197328
• DOI: 10.1049/cp.2013.0645

The "Self-healing" protection feature of a medium voltage cable distribution grid is an integral part of a well-functioning DMS/SCADA system applied in the grid. Reliable telecommunications are indispensable for the operation of the DMS/SCADA system. Through the application in the grid of the "Smarter RMU's instead of conventional RMU's, a "Self-healing" protection concept will be provided which can be used as a backup in the case of a telecommunication breakdown or a DMS/SCADA malfunction. The same "Self-healing" protection concept can be provided as well in any grid in the absence of a SCADA system, provided a number of "Smarter RMU"s is installed in the Grid. The "Smarter RMU", is a Single Breaker, Auto-Loop-Sectionalizing, Fuse-less Smart RMU. Using its local intelligence (microprocessor), the following can be achieved: (1) Automatic fault location and fault isolation. (2) Automatic network reconfiguration to minimise the number of electricity consumers affected. (4 pages)