Three-Phase Tripping - ABB REL670 2.2 IEC Applications Manual

Section 17
Logic
17.1.2.1
742
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.

Three-phase tripping

Connect the inputs from the protection functions to the input TRIN. 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,
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 Program = 3 phase and set the required length of the trip
pulse to for example, tTripMin = 150ms.
The typical connection is shown below in figure 382.
Protection functions with 3 phase
trip, for example time delayed
overcurrent protection
IEC05000544 V4 EN-US
Figure 382: Tripping logic SMPPTRC is used for a simple three-phase tripping
application
SMPPTRC
BLOCK
TMAGAPC
BLKLKOUT
TRIN
TRINL1
TRINL2
TRINL3
PSL1
PSL2
PSL3
1PTRZ
1PTREF
P3PTR
SETLKOUT
RSTLKOUT
STDIR
Line distance protection REL670 2.2 IEC
1MRK 506 369-UEN B
M14828-7 v10
TRIP
TRL1
TRL2
TRL3
TR1P
TR2P
TR3P
CLLKOUT
START
STL1
STL2
STL3
STN
FW
REV
IEC05000544-4-en.vsdx
Application manual