Completing The Test - ABB RET670 Commissioning Manual

1MRK 504 154-UUS B
5. Inject a voltage V
6. Inject a load current for Transformer 1 that is equal to rated load current
current for Transformer 2 that is 1% less than (
7. Confirm that the automatic voltage control for tap changer, for parallel control function
TR8ATCC (90) responds in accordance with the setting for
conditions can be confirmed through interrogation of the event menu or the control menu on
the local HMI.
VTmismatch during parallel operation
1. Confirm that
2. Review the setting for
3. Inject a voltage V
( VTmismatch · VSet )) for Transformer 2.
4. This condition should result in a
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
10.10.3.9

Completing the test

Continue to test another function or end the test by changing the
Restore connections and settings to their original values, if they were changed for testing
purposes.
10.10.4 Single command, 16 signals SINGLECMD
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
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.
10.10.5 Interlocking
Prepare the IED for verification of settings as outlined in section
section "Preparing for test"
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.
Commissioning manual
VSet for each transformer.
equal to
B
OperationPAR is set to MF for each transformer in the parallel group.
VTmismatch and tVTmismatch .
VSet for Transformer 1 and a voltage less than ( VSet –
equal to
B
VTmismatch which will mutually block the operation of the
in this chapter.
Testing functionality by secondary injection
I2Base – ( I2Base · CircCurrLimit))
CircCurrBk . Alarm and blocking
CircCurrBk .
TestMode setting to Disabled .
"Requirements"
Section 10
I2Base and a load
SEMOD175185-859 v4
SEMOD175185-374 v4
SEMOD172444-5 v3
Mode = Off ,
M11755-2 v8
and
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