Settings; Operation Principle - Hitachi Relion 650 Series Technical Manual

Section 13
Station communication
13.7.5

Settings

Table 325: MU1_4I_4U Non group settings (basic)
Name
SVId
SmplGrp
CTStarPoint1
CTStarPoint2
CTStarPoint3
CTStarPoint4
Table 326: MU1_4I_4U Non group settings (advanced)
Name
SynchMode
13.7.6

Operation principle

A merging unit (MU) gathers sampled values of primary current and voltage signals from instrument
transformers, electronic transducers, or both. The gathered data are transmitted to subscribers over
the process bus, utilizing a process bus according to the IEC 61850-9-2(LE) specification.
The IED communicates with the MUs over the process bus via the LAN2 A port (X3) of the
communication interface module. Only data streams sampled at 80 samples/cycle are accepted. In
ACT, the MU appears as a function block (unlike an analog input module).
356
Values (Range) Unit
0 - 35 -
0 - 65535 -
FromObject -
ToObject
FromObject -
ToObject
FromObject -
ToObject
FromObject -
ToObject
Values (Range) Unit
NoSynch -
Init
Operation
MU2_4I_4U, MU3_4I_4U and MU4_4I_4U have the same settings as MU1_4I_4U.
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Step Default
1 ABB_MU0101
1 0
- ToObject
- ToObject
- ToObject
- ToObject
Step Default
- Operation
1MRK 511 557-UEN Rev. A
Description
MU identifier
Sampling group
ToObject= towards protected object,
FromObject= the opposite
ToObject= towards protected object,
FromObject= the opposite
ToObject= towards protected object,
FromObject= the opposite
ToObject= towards protected object,
FromObject= the opposite
Description
Synchronization mode
GUID-242C96FD-E2AA-4B57-AD66-79571D067FCB v1
GUID-1318F925-300F-418F-9526-BD8540DFF22E v1
Technical Manual
PID-2396-SETTINGS v2