Hunan Electric Power ›› 2022, Vol. 42 ›› Issue (4): 46-49.doi: 10.3969/j.issn.1008-0198.2022.04.009

• Researches and Tests • Previous Articles     Next Articles

Research on Cross-Section Overload Control Time of 500 kV Main Transformer after N-1 Fault

KANG Long   

  1. State Grid Jinhua Power Supply Company,Jinhua 321017,China
  • Received:2022-03-16 Revised:2022-04-08 Online:2022-08-25 Published:2022-10-14

Abstract: In order to solve the problems of cross-section power exceeding limit and power supply capacity decreasing after N-1 fault, the characteristics and reasons of cross-section exceeding control time are analyzed, and the visualization method of pre-plan is put forward. By making the accident preplan of 500 kV main transformer failure in the graphical and batch control one cliok operation of the system, fast load transfer or cut-off under 500 kV failure is realized, it provides a reference for realizing fast control cross-section limit crossing when 500 kV main transformer fails.

Key words: N-1, cross-section overload, plan visualization, one click operation

CLC Number: