8IEC60044 - 7.Instrument Transformers - part7:Electronic Voltage Transducers[S].2002.
9IEC60044 - 8.Instrument Transformers - part8:Electronic Current Transducers[S].2002.
10IEC61850 - 9 - 1.Communication Networks and Systems in Substations.Part 9 - 1:Specific Communication Service Mapping (SCSM)-Sampled analogue values over serial unidirectional multidrop point to point link[S],2002.