Technical Guide P12y/EN FT/D22
User Guide
MiCOM P125/P126/P127 Page 45/108
By pushing 2 the next window will display the Delay Type
Ie> ?
DIR
Selection of the first alarm threshold function for earth
fault current (Ie>). Setting choice: No, Yes, DIR
If the user selects DIR the following window is shown:
If the user selects No, the next window will show the
threshold menu Ie>>.
Ie>
1.000 Ien
Displays setting values for the alarm threshold. Three
earth fault current ranges are available:
from 0.002 to 1 Ien, in steps of 0.001 Ien.
Cortec code C
from 0.010 to 8 Ien, in steps of 0.005 Ien.
Cortec code B
from 0.1 to 25 Ien, in steps of 0.01 Ien.
Cortec code A
Ue>
5.0 V
Displays setting values for the alarm threshold Ue>.
Input voltage range 57–130V: The threshold setting
range is from 1 to 260V, in steps of 0.1V.
Input voltage range 220–480V: The threshold setting
range is from 4 to 960V, in steps of 0.5V.
Ie>
Torque 0 °
Displays setting value for the torque angle.
Torque angle setting range is from 0° to 359 °, in steps
of 1°.
Ie>
Trip Zone ±10 °
Displays angle value for the Trip Zone.
This defines the operating region to either side of the
torque angle. Setting range is from ±10° to ±170°, in
steps of 1°.
By pushing 2 the next window will display the Delay Type
4.5.2.1 Threshold Menu Ie> DMT
Delay Type
DMT
Displays threshold delay time type. Setting choices are:
DMT (definite time), RI for the electromechanical
inverse time curve, IEC-XX, CO2, CO8, IEEE-XX inverse
time delay curve and RECT curve.
If the user selects DMT the following menu is displayed:
t Ie>
150.00 s
Displays setting value for the trip threshold.
The setting range is from 0 to 150 s, in steps of 10 ms.
tReset
0.10 s
Displays setting value for the reset time.
The setting range is from 0 to 100 s, in steps of 10 ms.
By pushing 2 the next window will display the Ie>>?
To Next Page
Loading...