The treatment process and analysis of liaoning power grid november 7th blackout

This paper introduces the occurrence, the development and the recovery process of 11.7 Liaoning Power Grid blackout accidents. Since it bears many resemblances to 3.4 accident of Liaoning Power Gird in 2007 in terms of cause, location, treatment and influence, this paper analyses this two accidents from the aspects of region, meteorology, devices, grip structure and social impacts. Thus, some characteristics of power girds' frozen accidents of South Liaoning are summarized and suggestions on the operation of power girds are bring forward.