Intelligent M.V. circuit-breakers: recent evolutions

• Published in: 14th International Conference and Exhibition on Electricity Distribution (CIRED 1997 - Distributing Power for the Millennium) pp. 1.29.1 - 1.29.5
• Main Authors: Morant, M, Bonjean, M, Thiry, P, Wysota, D
• Format: Conference Proceeding
• Language: English
• Published: London IEE 1997
• Subjects: Applied sciences; Connection and protection apparatus; Control engineering computing; Control of electric power systems; Electrical engineering. Electrical power engineering; Exact sciences and technology; Power engineering computing; Power system management, operation and economics; Protection apparatus; Switchgear; Telecontrol and telemetering components; Telemetry; high current interruption; power system protection; intelligent control; operating mechanism; circuit breaking chambers; communication protocols; asymmetrical magnetic actuator; technological developments; intelligent MV circuit-breakers; telecontrol; computer-based telecontrol; circuit breakers; power system control; Circuit breaker; Vacuum equipment; Protective switchgear; Reliability; Medium voltage; Electric device
• ISBN: 9780852966747; 0852966741
• ISSN: 0537-9989
• DOI: 10.1049/cp:19970468

With the recent evolution of circuit breaking chambers, high current interruption is no longer a problem. The more profitable benefits, both on the technological and the economical points of view, lead to an increase of the added value of a circuit-breaker in the power network. Soon it will also be possible to integrate the circuit-breaker in the managing process of a substation, by using a digital linkage to the drive. By introducing a new drive principle, based on an asymmetrical magnetic actuator, the operating mechanism can be very simple and will integrate directly this communication philosophy. It is assumed that the standards will rapidly define the communication protocols between devices. This is already the subject of an IEC working group. (5 pages)