Settings P54x/EN ST/La4
MiCOM P543, P544, P545, P546
(ST) 4-3
ST
1. SETTINGS
The MiCOM P54x must be configured to the system and application by means of appropriate
settings. The sequence in which the settings are listed and described in this chapter will be
the protection setting, control and configuration settings and the disturbance recorder
settings. The relay is supplied with a factory-set configuration of default settings.
1.1 Relay settings configuration
The rel
ay is a multi-function device that supports numerous different protection, control and
communication features. In order to simplify the setting of the relay, there is a configuration
settings column which can be used to enable or disable many of the functions of the relay.
The settings associated with any function that is disabled are made invisible; i.e. they are not
shown in the menu. To disable a function change the relevant cell in the ‘Configuration’
column from ‘Enabled’ to ‘Disabled’.
The configuration column controls which of the four protection settings groups is selected as
active through the ‘Active settings’ cell. A protection setting group can also be disabled in
the configuration column, provided it is not the present active group. Similarly, a disabled
setting group cannot be set as the active group.
The column also allows all of the setting values in one group of protection settings to be
copied to another group.
To do this firstly set the ‘Copy from’ cell to the protection setting group to be copied, and then
set the ‘copy to’ cell to the protection group where the copy is to be placed. The copied
settings are initially placed in the temporary scratchpad, and will only be used by the relay
following confirmation.
Menu text Default setting Available settings
Restore Defaults No Operation
No Operation
All Settings
Setting Group 1
Setting Group 2
Setting Group 3
Setting Group 4
Setting to restore a setting group to factory default settings.
To restore the default values to the settings in any Group settings, set the ‘restore defaults’
cell to the relevant Group number. Alternatively it is possible to set the ‘restore defaults’
cell to ‘all settings’ to restore the default values to all of the IED’s settings, not just the
Group settings.
The default settings will initially be placed in the scratchpad and will only be used by the
relay after they have been confirmed by the user.
Note: Restoring defaults to all settings includes the rear communication port settings,
which may result in communication via the rear port being disrupted if the new
(default) settings do not match those of the master station.
Setting Group Select via Menu
Select via Menu
Select via Optos
Allows setting group changes to be initiated via Opto Input or via Menu.
Active Settings Group 1
Group 1, Group 2, Group 3,
Group 4
Selects the active setting group.
Save Changes No Operation No Operation, Save, Abort
Saves all relay settings.
Copy from Group 1 Group 1, 2, 3 or 4
Allows displayed settings to be copied from a selected setting group.
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