Blackout

About: Blackout is a research topic. Over the lifetime, 2088 publications have been published within this topic receiving 30433 citations.

The 1987 Tokyo Blackout

Abstract: On July 23, 1987, the metropolitan Tokyo area experienced a massive blackout caused by voltage instability. In the blackout, more than 8 GW of load was lost for about 3.35 hours at most, which affected 2.8 million households. Lessons learned from the blackout have formed the foundation of voltage and reactive power control, currently adopted in the Tokyo Electric Power Company (TEPCO) network

Black-out device

Abstract: My invention relates to a blackout device. It has to do, more particularly, with a blackout blind which is mounted in a novel manner and in such a way that no light can escape from the interior of a room around the edges of the blind to the outside. At present it is customary to paint windows...

Reducing blackout risk by a wide-area control system (wacs): adding a new layer of defense

Abstract: Large-scale blackout risk is greatly reduced by multiple layers of defense. With best practices for tree trimming, power system planning and design, control center operation, prioritized control and protection up- grades, automatic load shedding, special protection sys- tems, etc., blackout risk becomes very low. Wide-area feedback control for discontinuous actions such as genera- tor or load tripping and capacitor/reactor bank switching, is an advanced "special protection system." After reviewing blackouts and close calls in 1996, 1999, 2003, and 2004, we describe Bonneville Power Administra- tion (BPA) development and on-line demonstration of Wide-Area stability and voltage Control System (WACS). WACS uses phasor measurements from many stations as inputs, with existing special protection system transfer trip circuits available for outputs. We describe in detail WACS response and validation for the June 14, 2004 outage of 4600 MW of generation near Phoenix, Arizona.

Impact assessment of the 1977 New York City blackout. Final report

Abstract: This study was commissioned by the Division of Electric Energy Systems (EES), Department of Energy (DOE) shortly after the July 13, 1977 New York City Blackout. The objectives were two-fold: to assess the availability and collect, where practical, data pertaining to a wide variety of impacts occurring as a result of the blackout; and to broadly define a framework to assess the value of electric power reliability from consideration of the blackout and its effects on individuals, businesses, and institutions. The impacts were complex and included both economic and social costs. In order to systematically classify the most significant of these impacts and provide guidance for data collection, impact classification schemes were developed. Major economic impact categories examined are business; government; utilities (Consolidated Edison); insurance industry; public health services; and other public services. Impacts were classified as either direct or indirect depending upon whether the impact was due to a cessation of electricity or a response to that cessation. The principal economic costs of the blackout are shown. Social impacts, i.e., the changes in social activities and adaptations to these changes were particularly significant in New York due to its unique demographic and geographic characteristics. The looting and arson thatmore » accompanied the blackout set aside the NYC experience from other similar power failures. (MCW)« less