ABB REG670 - Completing the Test; Single Command, 16 Signals SINGLECMD; Interlocking

1. Confirm that OperationPAR is set to MF for each transformer in the parallel
group.
2. Review the setting for VTmismatch and tVTmismatch.
3. Inject a voltage V
B
equal to VSet for Transformer 1 and a voltage less than (VSet
– (VTmismatch · VSet)) for Transformer 2.
4. This condition should result in a VTmismatch which will mutually block the
operation of the automatic voltage control for tap changer, parallel control
function TR8ATCC (90) for all transformers connected in the parallel group,
which can be confirmed through interrogation of the local HMI.
5. Confirm that the automatic voltage control for tap changer, parallel control
function TR8ATCC (90) responds in accordance with the setting for CircCurrBk.
13.10.3.9 Completing the test
SEMOD175185-374 v4
Continue to test another function or end the test by changing the TESTMODE setting to
Disabled. Restore connections and settings to their original values, if they were
changed for testing purposes.
13.10.4 Single command, 16 signals SINGLECMD
SEMOD172444-5 v3
For the single command function block, it is necessary to configure the output signal to
corresponding binary output of the IED. The operation of the single command function
(SINGLECMD) is then checked from the local HMI by applying the commands with
Mode = Off, Steady or Pulse, and by observing the logic statuses of the corresponding
binary output. Command control functions included in the operation of different built-
in functions must be tested at the same time as their corresponding functions.
13.10.5 Interlocking
M11755-2 v8
Prepare the IED for verification of settings outlined in Section
"Preparing the IED to
verify settings".
Values of the logical signals are available on the local HMI under Main menu/Tests/
Function status/Control/Apparatus control/Interlocking. The Signal Monitoring in
PCM600 shows the same signals that are available on the local HMI.
The interlocking function consists of a bay-level part and a station-level part. The
interlocking is delivery specific and is realized by bay-to-bay communication over the
station bus. For that reason, test the function in a system, that is, either in a complete
delivery system as an acceptance test (FAT/SAT) or as parts of that system.
1MRK 502 073-UUS A Section 13
Testing functionality by secondary injection
Generator protection REG670 2.2 ANSI and Injection equipment REX060, REX061, REX062 269
Commissioning manual