ABB Relion 670 Series Applications Manual page 406

Section 15
Logic
Distance protection zone 2 TRIP
Distance protection zone 3 TRIP
TR3P
TR3P
ANSI05000545 V4 EN-US
Figure 194: The trip logic function SMPPTRC (94) used for single-pole tripping application
15.1.2.3 Single-, two- or three-pole tripping
The single-/two-/three-pole tripping mode provides single-pole tripping for single-phase faults,
two-pole tripping for two-phase faults and three-pole tripping for multi-phase faults. The
operating mode is always used together with an autoreclosing scheme with setting
1/2/3Ph or Program = 1/3Ph attempt.
The functionality is very similar to the single-phase scheme described above. However SESRSYN
(25) must in addition to the connections for single phase above be informed that the trip is two
phase by connecting the trip logic output TR2P to the respective input in SESRSYN (25).
15.1.2.4 Lock-out
This function block is provided with possibilities to initiate lock-out. The lock-out can be set to
only activate the block closing output CLLKOUT or initiate the block closing output and also
maintain the trip signal (latched trip).
The lock-out can then be manually reset after checking the primary fault by activating the input
reset Lock-Out RSTLKOUT.
If external conditions are required to initiate Lock-out but not initiate trip this can be achieved by
activating input SETLKOUT. The setting
activate lock-out so only initiation of the input SETLKOUT will result in lock-out. This is normally
the case for overhead line protection where most faults are transient. Unsuccessful autoreclose
and back-up zone tripping can in such cases be connected to initiate Lock-out by activating the
input SETLKOUT.
400
OR
Overcurrent protection TRIP
Distance protection zone 1 TRIP
Phase Selection
PS_A
PS_B
PS_C
SMBRREC (79)
PREP3P
SMPPTRC (94)
BLOCK TRIP
BLKLKOUT TR_A
TRIN_3P
TR_B
TRINP_A TR_C
TRIN_B
TR1P
TRINL3 TR2P
TR3P
PS_A
CLLKOUT
PS_B
PS_C
1PTRZ
1PTREF
P3PTR
SETLKOUT
RSTLKOUT
AutoLock = Disabled means that the internal trip will not
1MRK 511 358-UUS A
ANSI05000545-4-en.vsd
Program =
Application manual
M14828-15 v3
M14828-18 v4