Completing The Test; Single Command, 16 Signals Singlecmd - ABB Relion 670 Series Commissioning Manual

Section 11
Testing functionality by secondary injection
service values on the local HMI and raise/lower commands detected from the binary
output mapped in the Signal Matrix.
12. Confirm that a tap change command is issued from the voltage control function to
compensate for the circulating current.
13. Injected currents can be reversed such that the direction of calculated circulating
currents change polarity, which will cause a lower command for Transformer 2 and a raise
command for Transformer 1.
Circulating current limit
1. Confirm that
2. Confirm that
3. Review the setting for
4. Review the setting for
in an
changer, for parallel control function TR8ATCC.
5. Inject a voltage U
6. Inject a load current for Transformer 1 that is equal to rated load current
load current for Transformer 2 that is 1% less than (
7. Confirm that the automatic voltage control for tap changer, for parallel control function
TR8ATCC 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 U
VTmismatch · USet )) for Transformer 2.
(
4. This condition should result in a
the automatic voltage control for tap changer, parallel control function TR8ATCC 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 responds in accordance with the setting for
11.9.4.9

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.
11.9.5

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.
162
The voltage injection equal to
during this test.
OperationPAR is set to CC for each transformer in the parallel group.
OperCCBlock is set to On for each transformer in the parallel group.
CircCurrLimit .
CircCurrBk to confirm whether a circulating current limit will result
Alarm state, Auto Block or Auto&Man Block of the automatic voltage control for tap
USet for each transformer.
equal to
B
OperationPAR is set to MF for each transformer in the parallel group.
VTmismatch and tVTmismatch .
USet for Transformer 1 and a voltage less than ( USet –
equal to
B
© Copyright 2017 ABB. All rights reserved
USet is required for both transformers
I2Base – ( I2Base · CircCurrLimit))
CircCurrBk . Alarm and blocking
VTmismatch which will mutually block the operation of
CircCurrBk .
1MRK 511 403-UEN E
SEMOD175185-841 v6
I2Base and a
SEMOD175185-859 v4
SEMOD175185-374 v4
TESTMODE setting to Off .
SEMOD172444-5 v3
Mode = Off ,
Bay control REC670
Commissioning manual