8.1.6 Phase voltage measurement VPHMMXU
8.1.6.1 Identification
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Phase voltage measurement VPHMMXU 3UL VL
8.1.6.2 Function block
Figure 808: Function block
8.1.6.3 Functionality
The phase voltage measurement function VPHMMXU provides limit value
supervision output (HIGH_ALARM, HIGH_WARN, LOW_WARN and LOW_ALARM).
Instantaneous phase voltage in volt is available for application configurations
through output U_INST_A, U_INST_B and U_INST_C. Phase voltage demand value in
volt is for connecting to Load profile recorder (LDPRLRC) through output U_DMD_A,
U_DMD_B and U_DMD_C.
8.1.6.4 Analog channel configuration
VPHMMXU has one analog group input which must be properly configured.
Table 1377: Analog inputs
Input
Description
U3P Three-phase voltage
See the preprocessing function blocks in this document for the possible
signal sources.
There are a few special conditions which must be noted with the configuration.
1MRS759142 F
Measurement functions
REX640
Technical Manual
1453
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