2IEC 61850-8, Communication network and systems in substations[S].
3IEC 61850-9, Communication network and systems in substations[S].
4Shang Qiufeng, Qi Yincheng, Xie Zhiyuan. A new digital bus protection system using OCT and DSP[A]. 6th International Conference on Signal Processing Proceedings(ICSP'02), Beijing,2002: 173111734.