21.9.5 Operation principle
SEMOD55749-4 v5
Summation block 3 phase 3PHSUM receives the three-phase signals from Signal
matrix for analog inputs function (SMAI). In the same way, the BLOCK input will
reset all the outputs of the function to 0.
21.10 Global base values GBASVAL
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21.10.1 Identification
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Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Global base values GBASVAL - -
21.10.2 Functionality
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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.
21.10.3 Settings
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PID-4026-SETTINGS v7
Table 609: GBASVAL Non group settings (basic)
Name
Values (Range) Unit Step Default Description
UBase 0.05 - 2000.00 kV 0.05 400.00 Global base voltage
IBase 1 - 99999 A 1 3000 Global base current
SBase 1.00 - 200000.00 MVA 0.05 2000.00 Global base apparent power
Section 21 1MRK 505 394-UEN A
Basic IED functions
806 Line differential protection RED650 2.2 IEC
Technical manual
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