ABB Relion 670 Series Applications Manual page 432

Section 16
Logic
16.1.2.3 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 three-phase faults. The
operating mode is always used together with an autoreclosing scheme with setting
1/2/3 ph or ARMode = 1/2 Ph .
The functionality is very similar to the single-phase scheme described above. However, in addition
to the connections for single phase SMBRREC (79) must also be informed that the trip is two
phases by connecting the output TR2P to the input TR2P in the SMBRREC (79) function.
16.1.2.4 Lock-out
The SMPPTRC 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 output TR3P (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 a closing circuit lock-out but not to lockout trip, this
can be achieved by activating input SETLKOUT. The setting
internal trip will not 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.
16.1.2.5 Example of directional data
An example how to connect the directional data from different application functions to the trip
function is given below, see Figure 206:
426
© Copyright 2017 ABB. All rights reserved
AutoLock = Disabled means that the
GUID-08AC09AB-2B2F-4095-B06E-1171CF225869 v2
Bay control REC670
Application manual
1MRK 511 401-UUS F
M14828-15 v5
ARMode =
M14828-18 v6