5-168 F60 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUALSYSTEM SETUP CHAPTER 5: SETTINGS5Figure 5-86: Synchrophasor implementation5.5.7.3 UR implementation of IEC 61850-90-5Synchrophasor data as measured and calculated by PMUs is used to assess the condition of the electrical power network.The IEEE C37.118 standards define synchrophasors and related message formats to transmit synchrophasor data.Synchrophasor streaming via IEEE C37.118 has proven to work but the need to have a communication mechanism that iscompliant with the concept of IEC 61850 has led to the development of IEC 61850-90-5. The IEC 61850-90-5 technicalreport defines the packet structure for multicast routing of streamed Sampled Value (SV) known as R-SV.UR firmware versions 7.0 and above have a 90-5 based R-SV implementation equivalent in structure and configuration tothat of the existing IEEE C37.118 implementation of firmware version 6.0, that is, synchrophasor data at rates up to 60 Hzfor metering and 120 Hz for protection class synchrophasors. The following two figures depict the general data flow for thegeneration of synchrophasor data for IEC 61850-90-5. In the first figure, when IEC 61850-90-5 is selected all real andvirtual sources are available for the IEC 61850-90-5 PMUs.The number of PMUs and aggregators vary by product, as outlined in the table.Table 5-19: PMU implementation by UR deviceThe figure shows an example of an N60 using four Logical Device PMUs (Logical Device 2 through 5) and four aggregators.The control blocks for the aggregators are located in LD1. A 64 character LDName setting is provided.UR device Number ofPMUSNumber ofaggregatorsNumber ofanalog inputsCommentN60 6 4 16 1, 2, 4, or 6 PMUs can be usedC60 2 2 16D60, F60, G60, L30, L90, T60 1 1 16
