Areva MiCom P120, Technical Manual

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User Guide P12x/EN FT/A96
MiCOM P121/P122/P123
Page 61/72
t Close Pulse
100
ms
Displays and sets the closing pulse time. Setting range is
from 0.1 to 5 s, in steps of 10 ms.
5.9.14 Comm. Order Submenu ( P122 & P123 only)
AUTOMAT. CTRL
Heading of the AUTOMAT.CTRL menu. Press to
access the menu, then Until the desired submenu is
reached.
Comm. Ord. Latch
Times
Heading of the Comm. Ord. Latch Times submenu.
Press to access the different submenus.
NOTE: This submenu is active if at least one
communication order is assigned to an output
relay.
t Comm 1
100
ms
Selection of the t Comm 1 pulse time.
The setting range for t Comm 1 is from 0.1 s to 5 s, in
steps of 0.05 s. Use
to modify and press to
validate your choice.
t Comm 2
150
ms
Selection of the t Comm 2 pulse time.
The setting range for t Comm 2 is from 0.1 s to 5 s,
insteps of 0.05. Use
to modify and press to
validate your choice.
t Comm 3
5
s
Selection of the t Comm 3 pulse time.
The setting range for t Comm 3 is from 0.1 s to 5 s ,in
steps of 0.05 s. Use
to modify and press to
validate your choice.
t Comm 4
1
s
Selection of the t Comm 4 pulse time.
The setting range for t Comm 4 is from 0.1 s to 5 s in
steps of 0.05 s. Use
to modify and press to
validate your choice.
5.9.15 Submenu SOTF (Switch on to Fault) ( P123 only)
With the SOTF submenu, it is possible to shorten the time to trip when for example the relay
has detected a fault that is still present on a feeder after energising.
AUTOMAT. CTRL
Heading of AUTOMAT. CTRL menu.
Press
to access the SOTF-menu, and until the desired
submenu is reached.
SOTF
Heading of SOTF submenu.
To navigate within submenu points, press
. To modify
setting, press . Use to scroll and set available
selections. Press to confirm choice.
Sotf?
No
Enables/Disables the SOTF function.
Setting choice: Yes, No.
If Yes is selected, the following menu is displayed:
If No is selected, the SOTF submenu is not activated.
t Sotf
0.10
s
Set the time delay value (tSotf) associated to the SOTF
function.
The setting range for t Sotf is from 0 to 500 ms, in steps of
10 ms.
The SOTF/TOR tripping time delay is useful for some cases
of serious transient or when three poles don’t close at the
same time, or when the CB doesn’t close instantaneously.