By comprehensive use of online cyclic redundancy check (CRC) code control

comparative analysis for configuration of the virtual circuit and visual check for the virtual circuit of substation configuration description (SCD) file

the devices whose configuration should be upgraded synchronously with SCD file can be determined. Through comparative analysis of the characteristics of hardware circuit and the virtual circuit of the secondary system in the substation

the completeness of the SCD file control strategy is proposed and proved. In the case of the busbar protection expansion project

the control scheme for the SCD file is analyzed.