ABB RED650 User Manual

Name Type Values (Range) Unit Description
OperatorBlocked BOOLEAN 1=Yes
0=No
- OperatorBlocked
indication output for U4
Oscillatory BOOLEAN 1=Yes
0=No
- Oscillatory indication
output for U4
OutOfRange BOOLEAN 1=Yes
0=No
- OutOfRange indication
output for U4
Overflow BOOLEAN 1=Yes
0=No
- Overflow indication
output for U4
Source BOOLEAN 0=Process
1=Substituted
- Source indication output
for U4
Test BOOLEAN 1=Yes
0=No
- Test indication output for
U4
Validity INTEGER 0=Good
2=Reserved
1=Invalid
3=Questionable
-
Validity indication output
U4
18.5.6 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 505 394-UEN A Section 18
Station communication
Line differential protection RED650 2.2 IEC 673
Technical manual

ABB RED650 Specifications

General

Brand	ABB
Model	RED650
Category	Protection Device
Language	English