18.6.2 Setting guidelines SEMOD56006-4 v6The 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, Group2 - Group 1 or –(Group 1 + Group 2)).DFTReference: The reference DFT block (InternalDFT Ref,DFTRefGrp1 orExternal DFT ref) .FreqMeasMinVal: The minimum value of the voltage for which the frequency iscalculated, expressed as percent of UBasebase voltage setting (for each instance x).GlobalBaseSel: Selects the global base value group used by the function to define(IBase), (UBase) and (SBase).18.7 Global base values GBASVAL GUID-2FDB0A2C-10FE-4954-B6E4-9DA2EEEF1668 v118.7.1 IdentificationGUID-0D5405BE-E669-44C8-A208-3A4C86D39115 v3Function description IEC 61850identificationIEC 60617identificationANSI/IEEE C37.2device numberGlobal base values GBASVAL - -18.7.2 Application GUID-D58ECA9A-9771-443D-BF84-8EF582A346BF v4Global base values function (GBASVAL) is used to provide global values,common for all applicable functions within the IED. One set of global valuesconsists of values for current, voltage and apparent power and it is possible to havetwelve different sets.This is an advantage since all applicable functions in the IED use a single source ofbase values. This facilitates consistency throughout the IED and also facilitates asingle point for updating values when necessary.Each applicable function in the IED has a parameter, GlobalBaseSel, defining oneout of the twelve sets of GBASVAL functions.18.7.3 Setting guidelines GUID-E3F5D754-BD17-4729-895B-957A09C2AC75 v4UBase: Phase-to-phase voltage value to be used as a base value for applicablefunctions throughout the IED.1MRK 504 169-UEN A Section 18Basic IED functionsTransformer protection RET650 2.2 IEC 345Application manual
