Analysis on the "7.23" Sequent Tripping Accident of 500 kV Sanlong II and ITransmission Lines
The operation of 1000kV UHV tie-line of Huazhong and Huabei Grid brings new challenges to the operation,control and accident treatment of the grid.Through the deep study on the happening,treating and effects of the "7.23" tripping accident,some successful experiences and suggestions are presented for the accident treatment of large grid in this paper.