ABB Relion 670 Series Applications Manual page 431

1MRK 511 401-UUS F
When single-pole tripping schemes are used, a single-phase autoreclosing attempt is expected to
follow. For cases where the autoreclosing is not in service or will not follow for some reason, the
input prepare three-pole trip P3PTR must be activated. This input is normally connected to the
output PREP3P on the autorecloser function SMBRREC (79) but can also be connected to other
signals, for example, an external logic signal. If two circuit breakers are involved, one SMPPTRC
block instance and one SMBRREC (79) instance are used for each circuit breaker. This will ensure
correct operation and behavior of each circuit breaker.
The output TR3P must be connected to the input TR3P on the SMBRREC (79) function in order to
switch SMBRREC (79) to perform a three-pole reclosing. If this signal is not activated, SMBRREC
will use single-pole dead time.
Other back-up functions are connected to the input TRINP_3P as described above for three-pole
tripping. A typical connection for a single-pole tripping scheme is shown in figure 205.
Phase segregated trip A, B and C
from example line differential or
distance protection
Phase selection A, B and C from
external phase selection logic
Trip by communication scheme of
distance protection if required to
provide a single pole trip
Trip by communication scheme of
earth fault protection if required to
provide single pole trip
TR3P
To activate lockout for any trip
To reset lockout
ANSI05000545 V6 EN-US
Figure 205: The trip logic function SMPPTRC (94) used for single-pole tripping application
Bay control REC670
Application manual
If a second line protection is utilizing the same SMBRREC (79), the three-pole trip
signal must be generated as OR conditions from both line protections.
Protection functions with 3
phase trip, for example time
delayed overcurrent protection
SMBRREC
PREP3P
To prepare 3 phase trip
for any trip signal
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SMPPTRC (94)
OR
BLOCK
BLKLKOUT
TRINP_3P
TRINP_A
TRINP_B
TRINP_C
PS_A
PS_B CLLKOUT
PS_C
1PTRZ
1PTRGF
P3PTR
SETLKOUT
RSTLKOUT
CND
TRIP
TR_A
TR_B
TR_C
TR1P
TR2P
TR3P
BFI_3P
BFI_A
BFI_B
BFI_C
STN
FW
REV
ANSI05000545-6-en.vsdx
Section 16
Logic
425