Digital protection and monitoring system for medium voltage substations and electric installations

• Published in: 14th International Conference and Exhibition on Electricity Distribution (CIRED 1997 - Distributing Power for the Millennium) pp. 4.16.1 - 4.16.2
• Main Authors: Lane, V.E, Joly, J.M
• Format: Conference Proceeding
• Language: English
• Published: London IEE 1997
• Subjects: Applied sciences; Computer communications; Computerised instrumentation; Control engineering computing; Control of electric power systems; Electrical engineering. Electrical power engineering; Electrical power engineering; Exact sciences and technology; Local area networks; Power engineering computing; Power networks and lines; Power system management, operation and economics; Power system measurement and metering; Power system protection; Substations; Telecontrol and telemetering components; Telemetry; power system measurement; power system monitoring; power system protection; open systems; MV substation control; local area networks; interoperability; substations; target architecture; power system automation; telecontrol; local area network; integrated digital control system; computerised monitoring; MV substation protection; telemetry; power system control; Substation; Electrical network; Surveillance; Electrical equipment; Digital protection; Monitoring control system; Distribution system
• ISBN: 9780852966747; 0852966741
• ISSN: 0537-9989
• DOI: 10.1049/cp:19970566

A new approach to substation control and protection, aimed at the improvement of the management of power networks and substations, is being advocated by manufacturers and adopted by increasing numbers of power supply authorities. Protection, substation local control, operator interfaces, communication, remote control and a host of monitoring functions, most of which were previously segregated and device-oriented, with discrete relays or modules for each function, are now being integrated into multi-function microprocessor based units and interconnected on various types of local area networks. So, every component communicates to each other, sharing information through the local area network, and systems are smaller, because only one sensor is necessary for each information, instead of one sensor per component as before. The report defines the notion of a "target architecture" that manufacturers should focus on as far as interoperability is concerned in protection and monitoring control systems for electric substations. It presents a model of an integrated digital system that might provide the answer. This model is currently available and is well adapted to medium voltage electrical installations in industrial networks. (2 pages)