Micom P721, Technical Manual

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User Guide P72x/EN FT/C21
MiCOM P721/P723 Page 15/38
Product code
P723xxxxxxxxx
Displays the product code.
Serial number
XXXXXXXX
Displays the serial number
2.4 CONFIGURATION menu
Under this menu, the different submenus are:
CONFIGUR-
ATION
Connection
led 5
Led 6
Led 7
Led 8
Group select
Alarms
Inputs
Output
relays
Press to access the CONFIGURATION menu from the default display, then until the
desired submenu header is displayed.
2.4.1 Submenu CONFIGURATION
CONFIGURATION
Heading of the CONFIGURATION menu.
Connection
Heading of the Connection submenu. This submenu is
used to select and configure earth or phase protection,
Protection line select.
EARTH
P723 only.
This menu is used to select the configuration of the
protection (phase or earth supervision).
Protection choices: Earth or Phase.
Input selection
Current
The input selection menu is used to select Voltage unit
instead of Current.
Possible choices: Voltage or Current.
2.4.1.1 Submenu Configuration with Earth protection selected
E/Gnd Text
N
Choose a label (displayed with the associated values) for
E/Gnd.
Possible choices are N, E, or G.
Stabiliz Resist. N
30
Ω
This stabilizing resistor N (E or G) value is displayed only
if the analogue input mode is the Voltage mode.
It is used to set the resistor value of the P79x resistor
inserted in the outside input circuit of the protection.
Setting choice: 30
Ω
to 4000
Ω
, accuracy 0.1
Ω
.
The value is settable digit by digit, using or keys
to change the value, and or key to modify an other
digit.
E/Gnd CT Primary
1000
A
Choose the rated primary current of the earth CT.
Setting range: from 1 to 9999 – step 1.0000