11.13 Logic
SEMOD53577-1 v1
11.13.1 Tripping logic, common 3-phase output SMPPTRC (94)
SEMOD54375-102 v10
Prepare the IED for verification of settings outlined in Section "Preparing the IED to verify settings".
This function is functionality tested together with other protection functions (line differential protection,
ground-fault overcurrent protection, and so on) within the IED. It is recommended that the function is
tested together with the autorecloser function, when built into the IED or when a separate external unit is
used for reclosing purposes.
11.13.1.1 Function revision history
GUID-ADA72CE6-B6ED-48B3-A897-A7B42ECDEBB4 v2
Document
revision
Product
revision
History
A 2.2.1 STN (Start neutral) output added. IEC 61850 mapping is made for the added output.
B 2.2.1 -
C 2.2.2 -
D 2.2.3 -
E 2.2.3 -
F 2.2.4 -
G 2.2.4 Added TRINN (Trip neutral) input and TRN (trip neutral) outputs. TRINALL (Trip all phases)
input is changed from TRIN. IEC 61850 mapping is made for the added output. The block
logic is corrected for the lockout functionality.
H 2.2.5 -
11.13.1.2 3 phase operating mode
SEMOD54375-106 v10
1. Check that AutoLock and TripLockout are both set to Disabled .
2. Initiate a three-phase fault.
An adequate time interval between the faults should be considered, to overcome a reset time
caused by the possible activation of the autorecloser function SMBRREC (79). The function must
issue a three-pole trip in all cases when trip is initiated by any protection or some other built-in or
external function. The following functional output signals must always appear simultaneously: TRIP,
TR_A, TR_B, TR_C and TR3P.
11.13.1.3 1p/3p operating mode
SEMOD54375-116 v5
In addition to various other tests, the following tests should be performed. They depend on the complete
configuration of an IED:
Procedure
1. Make sure that TripLockout and AutoLock are both set to Disabled.
2. Initiate different single-phase-to-ground faults one at a time.
3. Initiate different phase-to-phase and three-phase faults.
1MRK 504 165-UUS Rev. J Section 11
Testing functionality by secondary injection
Transformer protection RET670 273
Commissioning manual
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