P12y/EN FT/D22 Technical Guide
User Guide
Page 52/108 MiCOM P125/P126/P127
4.5.3.1 Threshold Menu I> 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 I>
150.00 s
Displays setting value for the trip threshold.
The setting range is from 0 to 150 s, in steps of 10ms.
By pressing 2 the next window will display the I>>?
4.5.3.2 Threshold Menu I> RI
Delay Type
RI
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 RI the following menu is displayed:
K
1.000
Selection of K value for the RI curve.
The setting range is from 0.100 to 10 in steps of
0.005.
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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