P12y/EN FT/D22 Technical Guide
User Guide
Page 46/108 MiCOM P125/P126/P127
4.5.2.2 Threshold Menu Ie> 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.
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>>?
4.5.2.3 Threshold Menu Ie> 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 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>>?
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