Alstom MiCOM P125 - Page 49

Technical Guide P12y/EN FT/D22
User Guide
MiCOM P125/P126/P127 Page 47/108
4.5.2.4 Threshold Menu Ie> Redtifier curve
Delay Type
RECT
Displays threshold delay time type. Setting choices are:
DMT (definite time) RI for the electromechanical inverse
time curve, IEC-XX, CO2, CO8, IEEE-XX, RECT inverse
time delay curve.
If the user selects RECT curve the following menu is
displayed:
TMS
1.000
Displays TMS value for the curve.
The setting range is from 0.025 to 1.5, in steps of
0.025.
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.
Ie> >> >>>
Interlock Yes
Interlock of first threshold by the second and third
thresholds, but only if first threshold trip is set to IDMT.
Setting choice: No, Yes
By pushing 2 the next window will display the Ie>>?
4.5.2.5 Threshold Menu Ie> ANSI/IEEE
Delay Type
IEEE-EI
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.
If the user selects IEEE/ANSI curve, the following menu
is displayed:
TMS
1.000
Displays TMS value for the curve.
The setting range is from 0.025 to 1.5, in steps of
0.025.
4.5.2.6 Reset Threshold Menu Ie> DMT/IDMT IEEE/ANSI
Reset Delay Type
DMT
Displays the reset delay time type.
Select between DMT (Definitive Time) and IDMT
(Inverse Time).
If the user selects DMT delay type, the following menu
is displayed:
tReset
0.10 s
Displays setting value for the reset time.
The setting range is from 0 to 100 s, in steps of 10ms.
By pushing 2 the next window will display the Ie>>?