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

Section 11
Testing functionality by secondary injection
5. Inject a voltage V
6. Inject a load current for Transformer 1 that is equal to rated load current I2Base and a load current
for Transformer 2 that is 1% less than (I2Base – (I2Base · CircCurrLimit))
7. Confirm that the automatic voltage control for tap changer, for parallel control function TR8ATCC
(90) responds in accordance with the setting for CircCurrBk. Alarm and blocking 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 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
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.
11.10.5.9

Completing the test

Continue to test another function or end the test by changing the TESTMODE setting to Disabled.
Restore connections and settings to the original values, if changed for testing purposes.
11.10.6

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 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.
11.10.7

Interlocking

Prepare the IED for verification of settings as outlined in section
for test" in this chapter.
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.
186
equal to VSet for each transformer.
B
equal to VSet for Transformer 1 and a voltage less than (VSet – (VTmismatch ·
B
© 2017 - 2021 Hitachi Power Grids. All rights reserved
1MRK 511 403-UUS Rev. K
"Requirements" and section
Bay control REC670
Commissioning manual
SEMOD175185-859 v4
SEMOD175185-374 v4
SEMOD172444-5 v3
M11755-2 v9
"Preparing