6IEC. IEC60044-8 Instrument transformers-Part 8:Electrical current transducers[S]. [S.l.]:IEC,2002.
7IEC. IEC61850-9-1. Communication networks and systems in subslations Part 9-l:Specific Communication Service Mapping (SCSM) sampled values over serial unidirectional multidrop point to point liok[S].[S.l. ] : IEEE,2003.
8ANDERSON L,BRUNNFR C.ENGLER F. Substation automation based on IEC61850 with new process-close technologies [C ]// IEEE,Power Tech Conference Proceedings 2003. Bologna,Italy: IEEE,2003:26- 28.
9IEC. IEC61850-9-2. Communication networks substations Part9- 2 Specific Communication Service Mapping (SCSM) sampled values over ISO/IEC8802-3 link[S], [S.l.], IEC ,2003.