WANG JUNPING, ZHANG YING, YANG YIFU, et al. Analysis of Inconsistent Protection Action for Re-closing of Series Compensation of Single Phase Transient Ground Fault of 500 kV Line. [J]. Power capacitor & reactive power compensation, 2022, 43(5): 35-41.
WANG JUNPING, ZHANG YING, YANG YIFU, et al. Analysis of Inconsistent Protection Action for Re-closing of Series Compensation of Single Phase Transient Ground Fault of 500 kV Line. [J]. Power capacitor & reactive power compensation, 2022, 43(5): 35-41. DOI: 10.14044/j.1674-1757.pcrpc.2022.05.006.
In view of such issues aszero sequence post acceleration protection action and unsuccessful reclosing operation of 500 kV line with series compensation device during transient single phase ground fault
the cause of reclosing mal-operation is analyzed in accordance with related acceleration post acceleration principle and structural particularity of series compensation device in combination with protection action
recording data as well as SOE record.The cause of inconsistent re-switching of both thyristor controlled and fixed series compensation devices are analyzed further. At the same time
the re-control logic of the series compensation device is more clear. On this basis
the suggestion of such solutions as optimizing protection control procedure
modifying the protection action logic and adjusting the protection settings are proposed
which provide reference experience for protection configuration
operation and maintenance of the series compensation station in the design and operation.
关键词
单相重合闸固定串补(FSC)可控串补(TCSC)后加速保护分析
Keywords
single-phase re-closing operationfixed series compensation(FSC)thyristor controlled series compensation(TCSC)post-acceleration protectionanalysis