21.5.3 Setting guidelines
M15292-3 v2
Set the system rated frequency. Refer to section "Signal matrix for analog inputs SMAI" for
description on frequency tracking.
21.6 Summation block 3 phase 3PHSUM
SEMOD55968-1 v2
21.6.1 Application
SEMOD56004-4 v3
The analog summation block 3PHSUM function block is used in order to get the sum of two
sets of 3 phase analog signals (of the same type) for those IED functions that might need it.
21.6.2 Setting guidelines
SEMOD56006-4 v7
The summation block receives the three-phase signals from SMAI blocks. The summation 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
External DFT ref
) .
DFTRefGrp1
: This setting means use own internal adaptive DFT reference ( this setting makes
the
SUM3PH
self DFT adaptive, that is, it will use the measured frequency for the summation
signal to adapt DFT).
InternalDFTRef
: Gives fixed window DFT (to nominal system frequency).
ExternalDFTRef
: This setting means that the DFT samples-per-cycle (adaptive DFT) will be
controlled by SMAI1 SPFCOUT.
FreqMeasMinVal
: The minimum value of the voltage for which the frequency is calculated,
expressed as percent of
UBase
base voltage setting (for each instance x).
GlobalBaseSel
: Selects the global base value group used by the function to define (
IBase
),
(
UBase
) and (
SBase
).
21.7 Global base values GBASVAL
GUID-2FDB0A2C-10FE-4954-B6E4-9DA2EEEF1668 v1
21.7.1 Identification
GUID-0D5405BE-E669-44C8-A208-3A4C86D39115 v3
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Global base values GBASVAL - -
Section 21 1MRK 511 358-UEN A
Basic IED functions
444
Application manual
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