General settings/Control/TransformerVoltageControl(ATCC,90)/
TR1ATCC:x/TR8ATCC:x/UVBk
that may cause an alarm, total or automatic
block of the voltage control function to be displayed on the local HMI.
3.
Apply a voltage slightly below
Ublock
and confirm the response of the voltage
control function.
10.9.4.5
Check the upper and lower busbar voltage limit
1.
Confirm the settings for
Umin
and
Umax
in the local HMI under
Main menu/
Settings/Setting group N/Control/TransformerVoltageControl(ATCC,
90)/TR1ATCC:x/TR8ATCC:x/Voltage/Umax or Umin
and
Main menu/
Settings/IED Settings/Control/TR8ATCC (90)/TR8ATCC:n/Voltage/
Umax
2.
Confirm the voltage control function response to an applied voltage below
Umin
and above
Umax
, by reviewing the settings in the local HMI under
Main menu/
Settings/General settings/Control/TransformerVoltageControl(ATCC,
90)/TR1ATCC:x/TR8ATCC:x/UVPartBk
and
Main menu/General
Settings/Control/TransformerVoltageControl/TR1ATCC:x/
TR8ATCC:x/OVPartBk
. These conditions may cause an alarm or total block
of the voltage control function to be displayed on the local HMI.
3.
Decrease the injected voltage slightly below the
Umin
value and check for the
corresponding blocking or alarm condition on the local HMI. For an alarm
condition, the voltage regulation function is not blocked and a raise command
should be issued from the IED.
4.
Increase the applied voltage slightly above the
Umax
value and check for the
corresponding blocking or alarm condition on the local HMI. For an alarm
condition, the voltage regulation function is not blocked and a lower command
should be issued from the IED.
10.9.4.6
Check the overcurrent block function
1.
Confirm the setting for
Iblock
in the local HMI under
Main menu/Settings/
Setting group N/Control/TransformerVoltageControl(ATCC,91)/
TR1ATCC:x/TR8ATCC:x/TCCtrl/Iblock
2.
Confirm the voltage control function response to an applied current above
Iblock
, by reviewing the settings in the local HMI under
Main menu/Settings/
General settings/Control/TransformerVoltageControl(ATCC,91)/
TR1ATCC:x/TR8ATCC:x/OVPartBk
. This condition may cause an alarm or
total block of the voltage control function to be displayed on the local HMI.
3.
Inject a current higher than the
Iblock
setting and confirm the alarm or blocking
condition is present on the local HMI. If an automatic or total blocking condition
occurs, change the applied secondary voltage and confirm that no tap change
commands are issued from the associated binary outputs. This situation can also
be confirmed through reviewing the disturbance and service reports on the local
HMI.
Section 10
1MRK 511 360-UEN A
Testing functionality by secondary injection
160
Bay control REC670 2.1 IEC
Commissioning manual
Содержание Relion REC670
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