Evolving Fault - ABB Relion 670 Series Applications Manual

1MRK 511 358-UUS A
• Shall back-up time delayed trip give Lock-out (normally yes)
• Shall Lock-out be generated when closing onto a fault (mostly)
• Shall Lock-out be generated when the Autorecloser was OFF at the fault or for example, in
Single phase AR mode and the fault was multi-phase (normally not as no closing attempt has
been given)
• Shall Lock-out be generated if the Breaker did not have sufficient operating power for an
auto-reclosing sequence (normally not as no closing attempt has been given)
In figures
out relay as an external relay alternatively with the Lock-out created internally with the manual
closing going through the Synchro-check function. An example of Lock-out logic.
BJ-TRIP
ZCVPSOF-TRIP
ANSI05000315 V2 EN-US
Figure 112: Lock-out arranged with an external Lock-out relay
BJ-TRIP
ZCVPSOF-TRIP
CCRBRF (50BF)
ANSI05000316 V2 EN-US
Figure 113: Lock-out arranged with internal logic with manual closing going through in IED
13.2.2.20

Evolving fault

An evolving fault starts as a single-phase fault which leads to single-pole tripping and then the
fault spreads to another phase. The second fault is then cleared by three-pole tripping.
Application manual
112 and 113 the logic shows how a closing Lock-out logic can be designed with the Lock-
SMBRREC (79)
OR
INHIBIT
UNSUCCL
CCRBRF (50BF)
TRBU
SMBRREC (79)
OR
INHIBIT
UNSUCCL
SOFTWARE
OR IO RESET
BJTRIP
MAN CLOSE
OR
SMBRREC (79) CLOSE
SESRSYN (25)
AUTO STOP
MAN ENOK
SMBO
OR
MAIN ZAK CLOSE
SMPPTRC (94)
SETLKOUT
OR
CLLOUT
RESET LOCK-OUT
RSTLOUT
AND
OR
ELECTRICAL RESET
RELAY
Lock-out
RXMD1
11
SET
21
12
RESET
CLOSE COMMAND
ANSI05000315_2_en.vsd
SMBO
CLOSE COMMAND
ANSI05000316_2_en.vsd
Section 13
Control
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