ABB Relion 670 Series Applications Manual page 348

Section 15
Control
PROTECTION
xxxx-TRIP
ZCVPSOF-TRIP
TRIP-TR2P
TRIP-TR3P
SESRSYN-AUTOOK
IEC04000136 V4 EN-US
Figure 152: Example of I/O-signal connections for a single-phase, two-phase or three-
Setting recommendations for multi-breaker arrangements
Sequential reclosing in multi-breaker arrangements, like 1 1/2-breaker, double breaker and ring
bus, is achieved by giving the two line breakers different priorities. Refer to figure 153. In a
single breaker arrangement the setting is
setting for the first circuit breaker, the master, is
breaker
While the auto reclosing of the master is in progress, it issues the
unsuccessful reclosing the
activating the
value of setting
input is reset at the time of a successful reclosing of the first circuit breaker, the slave is
released to continue the reclosing sequence after the set
shortening the time, for the normal dead timers with the value of
the slave permission to react almost immediately when the
settable time for
breaker closing command at the same time. The slave should take the duration of the breaker
closing time of the master into consideration before sending the breaker closing command. A
setting
expires, the reclosing cycle of the slave is inhibited. If auto reclosing of the first breaker is
unsuccessful, the
the auto reclosing sequence of the latter.
342
BIM
INPUT
xx
ON
xx OFF
xx
BLKON
xx
BLKOFF
xx
INHIBIT
xx
xx
CBREADY
xx
CBCLOSED
xx
PLCLOST
xx
RESET
START
OR
STARTHS
SKIPHS
TRSOTF
THOLHOLD
TR2P
TR3P
SYNC
WAIT
RSTCOUNT
phase auto reclosing sequence
Priority = Low .
WFMASTER output is also maintained by the UNSUCCL signal. When
WAIT input, in the auto recloser set as slave, every dead timer is changed to the
tSlaveDeadTime and holds back the auto reclosing operation. When the WAIT
tSlaveDeadTime is 0.1sec because both master and slave should not send the
tWaitForMaster sets a maximum wait time for the WAIT input to reset. If the wait time
UNSUCCL output connected to the INHIBIT input of the slave unit interrupts
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SMBRREC
BLOCKED
SETON
INPROGR
ACTIVE
UNSUCCL
SUCCL
CLOSECB
PERMIT1P
PREP3P
READY
1PT1
2PT1
3PT1
3PT2
3PT3
3PT4
3PT5
WFMASTER
Priority = None . In a multi-breaker arrangement the
Priority = High and for the other circuit
tSlaveDeadTime . The reason for
1MRK 511 401-UEN Rev. K
BOM
OUTPUT
xx
xx
xx
xx
xx
xx
xx
xx
xx
xx
TRIP-P3PTR
EF4PTOC-BLOCK
OR
=IEC04000136=4=en=Original.vsd
WFMASTER output. After an
tSlaveDeadTime , is to give
WAIT input resets. The mimimum
Bay control REC670
Application manual
M12399-87 v6