ABB Relion 670 Series Applications Manual page 290

Section 13
Control
PROTECTION
xxxx-TRIP
ZCVPSOF-TRIP
ZMQPDIS (21)--TRIP
SESRSYN (25)-AUTOOK
ANSI04000135 V2 EN-US
Figure 114: Example of I/O-signal connections at a three-phase reclosing function
Setting recommendations for multi-breaker arrangements
Sequential reclosing in multi-breaker arrangements, like breaker-and-a-half, double breaker and
ring bus, is achieved by giving the two line breakers different priorities. Please refer to figure 116.
In a single breaker arrangement the setting is
setting for the first CB, the Master, is
While the reclosing of the master is in progress, it issues the signal WFMASTER. A reset delay of
one second ensures that the WAIT signal is kept high for the duration of the breaker closing time.
After an unsuccessful reclosing it is also maintained by the signal UNSUCCL. In the slave unit, the
signal WAIT holds back a reclosing operation. When the WAIT signal is reset at the time of a
successful reclosing of the first CB, the slave unit is released to continue the reclosing sequence. A
parameter
the reclosing cycle of the slave unit. If reclosing of the first breaker is unsuccessful, the output
signal UNSUCCL connected to the input INHIBIT of the slave unit interrupts the reclosing sequence
of the latter.
284
IOM
SMBRREC (79)
INPUT
xx
ON
xx
OFF
xx
F
BLKON
xx T
BLOCKOFF
xx
INHIBIT
xx
CBREADY
xx
52a
xx
PLCLOST
xx
xx
F
RESET
RI
OR
F
RI_HS
F
SKIPHS
OR TRSOTF
F
THOLHOLD
F
TR2P
T
TR3P
SYNC
F
WAIT
F
RSTCOUNT
tWait sets a maximum waiting time for the reset of the WAIT. At time-out it interrupts
The signals can be cross-connected to allow simple changing of the priority by just
High and the Low priorities without changing the configuration. The
setting the
inputs 52a for each breaker are important in multi breaker arrangements to ensure
that the CB was closed at the beginning of the cycle. If the High priority breaker is
not closed the High priority moves to the low priority breaker.
IOM
OUTPUT
xx
BLOCKED
xx
SETON
xx
INPROGR
xx
ACTIVE
xx
UNSUCCL
xx
SUCCL
xx
xx
CLOSECMD
xx
xx
PERMIT1P
PREP3P
READY
1PT1
2PT1
3PT1
3PT2
3PT3
3PT4
3PT5
WFMASTER
ANSI04000135_2_en.vsd
Priority = None . In a multi-breaker arrangement the
Priority = High and for the other CB Priority = Low .
1MRK 511 358-UUS A
M12399-87 v5
Application manual