SyncLostMode is not required to set as Block/BlockonLostUTC when differential
protection based on ECHO mode. A missing PPS however will lead to a drift between
MU and IED. Therefore protection functions in this case will be blocked.
GUID-37C7609A-D9CD-435F-BBEE-7518B88BEEDF v1
Functions can be blocked by loss of analog data, for example if a IEC/UCA
61850-9-2LE source malfunctions. Figure
malfunctions, and all function blocks connected to that 3-phase group get blocked as a
result, this is also known as conditional blocking functionality.
TRM
F1
F2
F3
F4
MU2
MU1
Lost data
Blocked function
IEC16000049-1-en.vsdx
SMAI3
SMAI2
SMAI1
IEC16000049 V1 EN-US
Figure 263:
An example of function blocking
19.5.7
Technical data
SEMOD172233-1 v1
SEMOD172236-2 v3
Table 500:
IEC/UCA 61850-9-2LE communication protocol
Functions
Value
Protocol
IEC/UCA 61850-9-2LE
Communication speed for the IEDs
100BASE-FX
1MRK 511 408-UUS A
Section 19
Station communication
Phasor measurement unit RES670 2.2 ANSI
663
Technical manual
Содержание Relion RES670
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