Alstom MiCOM P846, Техническое руководство

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Settings P846/EN ST/D
MiCOM P846
(ST) 4-3
ST
1. SETTINGS
The P846 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 (see chapter P846/EN GS for the detailed relay menu map). The relay is supplied
with a factory-set configuration of default settings.
1.1 Relay settings configuration
The relay is basically a single function device with ancillary functions such as voltage
transformer supervision and also supports control and communication features. The open
line detector function requires minimal system settings to operate and the settings are
included as part of the application data contained in the ‘CT AND VT RATIOS’ column. 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, 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.
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.
Copy to No Operation
No Operation
Group 1, 2, 3 or 4
Allows displayed settings to be copied to a selected setting group (ready to paste).