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.
16.1.2.1 Three-pole tripping
M14828-7 v10
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, 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 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
199.
SMPPTRC (94)
BLOCK
BLKLKOUT
TRINP_3P
TRINP_A
TRINP_B
TRINP_C
PS_A
PS_B
PS_C
1PTRZ
1PTRGF
P3PTR
S ETLKOUT
RSTLKOUT
CND
TRIP
TR_A
TR_B
TR_C
TR1P
TR2P
TR3P
CL LKOU T
BFI_3P
BFI_A
BFI_B
BFI_C
STN
FW
REV
ANSI05000707-4-en.vsdx
ANSI05000544 V4 EN-US
Figure 199: Tripping logic SMPPTRC (94) is used for a simple three-pole tripping
application
Section 16 1MRK 511 401-UUS A
Logic
486 Bay control REC670 2.2 ANSI
Application manual
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