ABB Relion 670 Series Applications Manual page 458

Section 17
Logic
If the OHL is connected to the substation via more than one breaker, one SMPPTRC function
block should be used for each breaker. For example when single-phase tripping and
autoreclosing is used on the line, both breakers are normally set up for 1/3-phase tripping and
1/3-phase autoreclosing. Alternatively, the breaker chosen as master can have single-phase
tripping, while the slave breaker could have three-phase 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-phase
reclosing onto the non-faulted line.
The same philosophy can be used for two-phase tripping and autoreclosing.
To prevent closing of a circuit breaker after a trip, the function offers a lockout function.
17.1.3.1 Three-phase tripping
Connect the inputs from the protection functions to the input TRINALL. 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 TRL1, TRL2, and TRL3 will always be
activated at every trip and can be utilized on individual trip outputs if single-phase operating
devices are available on the circuit breaker even when a three-phase tripping scheme is
selected.
Set the function block to
example,
The typical connection is shown below in
Protection functions with 3 phase
trip, for example time delayed
overcurrent protection
IEC05000544 V5 EN-US
Figure 233: Tripping logic SMPPTRC is used for a simple three-phase tripping application
17.1.3.2 Single- and/or three-phase tripping
The single-/three-phase tripping operation mode will give single-phase tripping for single-
phase faults and three-phase tripping for multi-phase fault. This operating mode is always
used together with a single-phase autoreclosing scheme.
452
Program = 3 phase and set the required length of the trip pulse to for
tTripMin = 150ms .
TMAGAPC
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Figure 233.
SMPPTRC
BLOCK
TRIP
BLKLKOUT TRL1
TRINALL TRL2
TRINL1
TRL3
TRN
TRINL2
TR1P
TRINL3
TRINN TR2P
TR3P
PSL1
CLLKOUT
PSL2
START
PSL3
STL1
1PTRZ
STL2
1PTREF
STL3
P3PTR
SETLKOUT STN
RSTLKOUT FW
STDIR REV
1MRK 511 401-UEN Rev. K
M14828-7 v11
IEC05000544-5-en.vsdx
M14828-11 v8
Bay control REC670
Application manual