ABB Relion 670 Series Applications Manual page 224

Section 15
Logic
meet the different double, breaker-and-a-half and other multiple circuit breaker arrangements,
multiple identical SMPPTRC (94) function blocks are provided within the IED. In such installation,
use one instance of SMPPTRC function per circuit breaker.
If the OHL is connected to the substation via more than one breaker, one SMPPTRC (94) function
block should be used for each breaker. For example when single-pole tripping and autoreclosing is
used on the line, both breakers are normally set up for 1/3-pole tripping and 1/3-phase
autoreclosing. Alternatively, the breaker chosen as master can have single-pole tripping, while the
slave breaker could have three-pole tripping and autoreclosing. In the case of a permanent fault,
only one of the breakers has to be operated when the fault is energized a second time. In the event
of a transient fault the slave breaker performs a three-pole reclosing onto the non-faulted line.
The same philosophy can be used for two-pole tripping and autoreclosing.
To prevent closing of a circuit breaker after a trip, the function offers a lockout function.
15.1.3.1 Three-pole tripping
Connect the inputs from the protection functions to the input TRINP_3P. The TMGAPC function
block is used to combine up to 32 inputs into one output. Connect the output TRIP to the binary
outputs on the IO board.
This signal can also be used for other purposes internally in the IED. An example could be the
starting of breaker failure protection. The three outputs TR_A, TR_B, and TR_C will always be
activated at every trip and can be utilized on individual trip outputs if single-pole operating
devices are available on the circuit breaker even when a three-pole tripping scheme is selected.
Set the function block to
example,
The typical connection is shown below in
BLOCK
BLKLKOUT
TRINP_3P
TRINP_A
TRINP_B
TRINP_C
PS_A
PS_B
PS_C
1PTRZ
1PTRGF
P3PTR
SETLKOUT
RSTLKOUT
CND
ANSI05000544 V4 EN-US
Figure 84: Tripping logic SMPPTRC (94) is used for a simple three-pole tripping application
15.1.3.2 Single- and/or three-pole tripping
The single-/three-pole tripping operation mode will give single-pole tripping for single-phase
faults and three-pole tripping for multi-phase fault. This operating mode is always used together
with a single-phase autoreclosing scheme.
218
Program = 3 phase and set the required length of the trip pulse to for
tTripMin = 150ms .
SMPPTRC (94)
TRIP
TR_A
TR_B
TR_C
TR1P
TR2P
TR3P
CLLKOU T
BFI_3P
BFI_A
BFI_B
BFI_C
STN
FW
REV
ANSI05000707-4-en.vsdx
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Figure 84.
1MRK 511 407-UUS Rev. J
M14828-7 v11
M14828-11 v8
Phasor measurement unit RES670
Application manual