Guide for Breaker Failure Protection Published
How do utilities handle backup protection? What are the advantages of using local backup over remote backup? How is breaker failure protection being implemented by utilities? What are the pitfalls in using the breaker auxiliary contact for breaker position? Where do you go to get these answers? Prior to 2005 no guide existed in applying breaker failure protection to answer any of these questions. The only previous article written by the PSRC was in 1982. An IEEE Power System Relaying Committee Working Group wrote a report titled "Summary Update of Practices on Breaker Failure Protection" and published it in the IEEE Transactions on Power Apparatus and Systems. Vol. PAS 101, no.3, pp 555-563. March 1982. More
CIGRE SC B5 - Protection and Automation
The business environment for utilities has changed drastically due to the restructuring of the world electrical energy markets. The profitability pressure has demanded reconsideration of the complete secondary system approaches, to identify and beneficially utilise all possible synergies between the tasks of protection, control and monitoring. All assets have to be used in more profitable ways, whilst the security of on-demand energy supply is increasingly important, due to the increasing costs for energy not supplied and the severe impacts that blackouts now have on communities, industry, commerce and nations. SC B5 covers all the secondary equipment and systems installed within substations. This includes power system protection, substation local and remote control, automation, metering, monitoring and recording. More
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