5-148 F60 FEEDER PROTECTION SYSTEM – INSTRUCTION MANUALSYSTEM SETUP CHAPTER 5: SETTINGS55.5.7 Phasor Measurement Unit5.5.7.1 MenuSETTINGS SYSTEM SETUP PHASOR MEASUREMENT UNIT5.5.7.2 UR synchrophasor implementationPhasors are used in protection relays. When these phasors are referenced to a common time base, they are referred to assynchrophasors. A vastly improved method for tracking power system dynamic phenomena for power system monitoring,protection, operation, and control can be realized when synchrophasors from different locations within the power systemare networked to a central location.The F60 offers PMU features over two communication standards, IEC 61850-90-5 and IEEE C37.118. The figure showscomplete synchrophasor implementation.Figure 5-73: 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. PHASOR MEASUREMENT UNIT PHASOR MEASUREMENT UNIT 1See below PMU AGGREGATOR 1See page 5-164 IEC 90-5 MSVCB CONFIGURATIONSee page 5-166The F60 is provided with an optional Phasor Measurement Unit (PMU) feature. This feature is specified as asoftware option at the time of ordering. The number of PMUs available also depends on this option. Using theorder code for your device, see the order codes in chapter 2 for details.
