Technical Guide P12y/EN FT/D22
User Guide
MiCOM P125/P126/P127 Page 91/108
4.6.8 Submenu Broken Conductor (P126 & P127)
AUTOMAT. CTRL
Heading of AUTOMAT. CTRL menu.
To gain access to the Broken Conductor detector
menu, press 2 and 6 until the submenu is reached.
Broken Conductor
Heading of Broken Conductor detector submenu.
To navigate within submenu points, press 8 2. To
modify setting, press 5. Use 8 2 4 6 to scroll and set
available selections. Press 5 to confirm choice.
Brkn. Cond ?
No
Selection of the Broken Conductor function.
Setting choice: Yes, No
If Yes is selected, the following menu is displayed:
If No is selected, the Broken Conductor function is
inactive.
Brkn.Cond Time
tBC 14400 s
Displays delay timer setting (tBC) for the Broken
Conductor function.
The setting range for tBC is from 0 to 14400 s, in steps
of 1s.
Ratio I2/I1
20 %
Displays value, in percent, for the Broken Conductor
threshold. This threshold is the ratio between negative
and positive phase sequence current.
Setting range is from 20 to 100% by, in steps of 1%.
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