Technical Guide P12y/EN FT/D22
User Guide
MiCOM P125/P126/P127 Page 53/108
4.5.3.3 Threshold Menu I> IEC-XX
Delay Type
IEC-STI
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 IEC 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 10ms.
By pushing 2 the next window will display the I>>?
4.5.3.4 Threshold Menu I> RECT
Delay Type
RECT
Displays threshold delay time type. Setting choices are:
DMT (definite time) RI for the electromechanical inverse
time curve, IEC-XX, RECT, CO2, CO8, IEEE-XX inverse
time delay curve.
If the user selects IEC 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 10ms.
I> >> >>>
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 I>>?
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