Showing papers on "Blackout published in 1990"

The Northeast Blackout of 1965

Abstract: Twenty-five years ago, on November 9, 1965, the electric utility industry - and the nation - experienced the biggest power failure in history. While major power outages did happen before and after this unique event, none of them came even close to the Great Northeast Blackout of 1965 - not in terms of the size of the area or the number of people affected, not in terms of the trauma inflicted on the society at large, and not in terms of its impact on the electric utility industry. With our institution memory - as a society - being as short as it is, many of the lessons that were learned by the industry, by the regulators, and by the nation at large in the wake of the Northeast Blackout have been, by now, mostly forgotten. The 25th anniversary of this event offers a unique opportunity, therefore, to refresh our institutional memory in this regard and, by doing so, bring to bear our past experience to the problems of today. This article has been written with this objective in mind and from the perspective of an individual who experienced firsthand - as an active electric utility industry participant - the Northeast more » Blackout itself, its aftermath, and the subsequent evolution of the industry to the present day. « less

Nuclear Power Plant Battery Performance During A Station Blackout

Abstract: The imposition of NUMARC8700 on most Nuclear Power Plants results in a significant impact on the capacity of existing safety related batteries. Since these batteries typically have limited design margins, extensive analysis and operator action can be required in order to comply with the 4 hour duty cycle requirement. This paper discusses some methods of reducing the existing load profiles and the conversion to Lotus 123 to facilitate the running of multiple scenarios in order to comply with the blackout requirements.