Name
Type
Values (Range)
Unit
Description
OldData
BOOLEAN
1=Yes
0=No
-
OldData indication output for
3V0
OperatorBlocked
BOOLEAN
1=Yes
0=No
-
OperatorBlocked indication
output for 3V0
Oscillatory
BOOLEAN
1=Yes
0=No
-
Oscillatory indication output
for 3V0
OutOfRange
BOOLEAN
1=Yes
0=No
-
OutOfRange indication output
for 3V0
Overflow
BOOLEAN
1=Yes
0=No
-
Overflow indication output for
3V0
Source
BOOLEAN
0=Process
1=Substituted
-
Source indication output for
3V0
Test
BOOLEAN
1=Yes
0=No
-
Test indication output for 3V0
Validity
INTEGER
0=Good
2=Reserved
1=Invalid
3=Questionable
-
Validity indication output 3V0
19.5.6
Operation principle
GUID-A1D31CDA-1FE2-4BC0-A472-1B35E73CA1F2 v4
The merging units (MUs) are situated close to the primary equipment, like circuit
breakers, isolators, etc. The MUs have the capability to gather measured values from
measuring transformers, non-conventional transducers or both. The gathered data are
then transmitted to subscribers over the process bus, utilizing the IEC/UCA
61850-9-2LE protocol.
The IED communicates with the MUs over the process bus via the rear access points.
For the user, the MU appears in the IED as a normal analogue input module and is
engineered in the very same way.
1MRK 511 408-UUS A
Section 19
Station communication
Phasor measurement unit RES670 2.2 ANSI
659
Technical manual
Summary of Contents for Relion RES670
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