BLOCK
TRIN
SETLKOUT
RSTLKOUT
SMPPTRC
TRIP
CLLKOUT
Impedance protection zone 1 TRIP
EF4PTOC TRIP
IEC16000184-1-en.vsd
Impedance protection zone 3 TRIP
Impedance protection zone 2 TRIP
TMAGAPC
STDIR
START
STL1
STL2
FW
REV
IEC16000184 V1 EN-US
Figure 153: Tripping logic SMPPTRC is used for a simple tripping application
14.1.2.2 Lock-out
M14828-18 v5
The function block is provided with possibilities to initiate lockout. The lockout
can be set to only activate the block closing output CLLKOUT or initiate the block
closing output and also maintain the trip output signal TRIP (latched trip), by
setting TripLockout=On.
The lockout can then be manually reset after checking the primary fault by
activating the reset input RSTLKOUT. Note that the activation of the RSTLKOUT
input will initiate a short pulse of 3 ms. A new reset needs a new activation of the
RSTLKOUT input.
If external conditions are required to initiate a lockout but not initiate a trip, this
can be achieved by activating input SETLKOUT. The setting AutoLock = Off
means that the internal trip will not activate lockout so only initiation of the input
SETLKOUT will result in lockout. 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 lockout by activating the
input SETLKOUT.
14.1.2.3 Example of directional data
GUID-08AC09AB-2B2F-4095-B06E-1171CF225869 v2
An example how to connect the directional data from different application
functions to the trip function is given below, see Figure
154:
Section 14 1MRK 506 375-UEN A
Logic
360 Railway application RER670 2.2 IEC
Application manual
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