A disaster may not necessarily demolish the telecommunications infrastructure, but instead it might affect national grid and cause blackouts, consequently disrupting network operation unless there is an alternative power source(s). In disaster-resilient networks, fiber cut, datacenter destruction, node isolation have been studied before with different scenarios, outage impact has investigated b...

On the 28 September 2003, a blackout affected more than 56 million people across Italy and areas of Switzerland. Estimates vary for the number of fatalities that were directly related to the loss of power. 30,000 people were trapped on trains. Several hundred passengers were stranded on underground transit systems. There were significant knock-on effects across other critical infrastructures. M...

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Many blackouts occur with time scales that would permit emergency control by the operators. However, in order to perform this control the operators need to quickly know the state of system and implement timely, corrective control actions. This paper describes several visualization techniques that can be used to provide this information. Techniques discussed include the use of dynamically sized ...

Mid-span compression joints in overhead transmission line conductors need to give not only reliability, but also electrical and mechanical properties equivalent the original conductor. The use of an inappropriate joint can lead disastrous consequences. An example this is complete blackout Sri Lankan power system October 2009 through inadequate size joint. This paper based on investigations whic...

The Johns Hopkins university will take part in a city-wide blackout from 9:45 till A0:00tonight. Headed by Chief Warden. .Dr...Sidney Painter, wardens, assistant wardens, and first aid representatives for this and other blackouts have been appointed by a faculty committee on Campus Protection, which has been functioning since December 15. In addition, student volunteers in the dormitories are t...

The power grid defines one of the most important technological networks of our times and sustains our complex society. It has evolved for more than a century into an extremely huge and seemingly robust and well understood system. But it becomes extremely fragile as well, when unexpected, usually minimal, failures turn into unknown dynamical behaviours leading, for example, to sudden and massive...

Reliable electricity supply is a fundamental need in industrialized countries. Therefore, it is crucial to be able to keep electric power systems in a secure state, even in case of disturbances. For this reason, electric power systems have been designed with redundancies and are able to guarantee a reliable electricity supply most of the time. However, large blackouts still occur all over the w...