ABB Relion 620 Series - Three-Phase Voltage Measurement VMMXU

8.1.4.7 Technical revision history
Table 898: CMMXU Technical revision history
Technical revision Change
B Menu changes
C Phase current angle values added to Moni-
tored data view. Minimum demand value
and time added to recorded data. Logarith-
mic demand calculation mode added and de-
mand interval setting moved under Measure-
ment menu as general setting to all demand
calculations.
D Internal improvement.
E Internal improvement.
8.1.5 Three-phase voltage measurement VMMXU
8.1.5.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE
C37.2 device
number
Three-phase voltage measure-
ment
VMMXU 3U 3V
8.1.5.2 Function block
Figure 502: Function block
8.1.5.3 Signals
Table 899: VMMXU Input signals
Name
Type Default Description
U_A_AB SIGNAL 0 Phase to earth volt-
age A or phase to
phase voltage AB
U_B_BC SIGNAL 0 Phase to earth volt-
age B or phase to
phase voltage BC
Table continues on the next page
1MRS757644 H Measurement functions
620 series
Technical Manual
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