18.9 Summation block 3 phase 3PHSUM18.9.1 ApplicationThe analog summation block 3PHSUM function block is used in order to get the sum oftwo sets of 3 phase analog signals (of the same type) for those IED functions that mightneed it.18.9.2 Setting guidelinesThe summation block receives the three-phase signals from SMAI blocks. Thesummation block has several settings.SummationType: Summation type (Group 1 + Group 2, Group 1 - Group 2, Group 2 -Group 1 or –(Group 1 + Group 2)).DFTReference: The reference DFT block (InternalDFT Ref,DFTRefGrp1 or ExternalDFT ref) .FreqMeasMinVal: The minimum value of the voltage for which the frequency iscalculated, expressed as percent of VBasebase voltage setting (for each instance x).GlobalBaseSel: Selects the global base value group used by the function to define (IBase),(VBase) and (SBase).18.10 Global base values GBASVAL18.10.1 IdentificationFunction description IEC 61850identificationIEC 60617identificationANSI/IEEE C37.2device numberGlobal base values GBASVAL - -18.10.2 ApplicationGlobal base values function (GBASVAL) is used to provide global values, common forall applicable functions within the IED. One set of global values consists of values forcurrent, voltage and apparent power and it is possible to have twelve different sets.1MRK 505 337-UUS - Section 18Basic IED functions467Application manual
