Siemens SIPROTEC 4 7UT6 Series Manual page 423

The reset time characteristics apply to (Ι/Ιp) ≤ 0.90
For residual current read 3Ι0p instead of Ι
for earth faults read Ι
SIPROTEC 4, 7UT6x, Manual
C53000-G1176-C230-5, Edition 09.2016
and T
p
instead of Ι and T instead of T
Ep p
ΙEp
4.4 Time Overcurrent Protection for Residual Current
instead of T
3Ι0p p
p
Technical Data
423