Single-, Two- Or Three-Pole Tripping - ABB RELION 670 Series Applications Manual

Section 15
Logic
15.1.1.3

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).
15.1.1.4 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.
15.1.1.5 Blocking of the function block
The function block can be blocked in two different ways. Its use is dependent on the application.
Blocking can be initiated internally by logic, or by the operator using a communication channel.
Total blockage of the trip function is done by activating the input BLOCK and can be used to block
the output of the trip logic in the event of internal failures. Blockage of lock-out output by
activating input BLKLKOUT is used for operator control of the lock-out function.
15.1.2 Setting guidelines
The parameters for Tripping logic SMPPTRC (94) are set via the local HMI or PCM600.
The following trip parameters can be set to regulate tripping.
Operation : Sets the mode of operation. Disabled switches the tripping off. The normal selection is
Enabled .
Program : Sets the required tripping scheme. Normally 3Ph or 1/2Ph are used.
TripLockout : Sets the scheme for lock-out. Disabled only activates the lock-out output. Enabled
activates the lock-out output and latches the output TRIP. The normal selection is
AutoLock : Sets the scheme for lock-out. Disabled only activates lock-out through the input
SETLKOUT.
selection is
202
Enabled additonally allows activation through the trip function itself. The normal
Disabled .
AutoLock = Disabled means that the internal trip will not
1MRK 511 364-UUS A
M14828-15 v3
Program =
M14828-18 v4
M14828-21 v3
M12274-3 v6
Disabled .
Application manual