Setting Guidelines - ABB REG670 Applications Manual

1MRK 502 071-UEN -
23.6.2
23.7
23.7.1
23.7.2
23.7.3
Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
Application manual

Setting guidelines

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) .
FreqMeasMinVal: The minimum value of the voltage for which the frequency is
calculated, 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).
Global base values GBASVAL
Identification
Function description
Global base values
Application
Global base values function (GBASVAL) is used to provide global values, common
for all applicable functions within the IED. One set of global values consists of values
for current, voltage and apparent power and it is possible to have twelve different sets.
This is an advantage since all applicable functions in the IED use a single source of
base values. This facilitates consistency throughout the IED and also facilitates a
single point for updating values when necessary.
Each applicable function in the IED has a parameter, GlobalBaseSel, defining one out
of the twelve sets of GBASVAL functions.
Setting guidelines
UBase: Phase-to-phase voltage value to be used as a base value for applicable
functions throughout the IED.
IBase: Phase current value to be used as a base value for applicable functions
throughout the IED.
Basic IED functions
IEC 61850 IEC 60617
identification identification
GBASVAL -
Section 23
ANSI/IEEE C37.2
device number
-
727