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Trip Time Curves acc. to IEC
Acc. to IEC 60255-3 or BS 142, Section 3.5.2 (see also
The tripping times for Ι/Ι
For residual current read 3Ι0p instead of Ι
for earth faults readΙ
Pickup Threshold
Dropout Time Curves as per IEC
Acc. to IEC 60255-3 or BS 142, Section 3.5.2 (see also
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
≥ 20 are identical to those for Ι/Ι
p
and T
p
instead of Ι
and T
instead of T
Ep
p
ΙEp
and T
p
instead of Ι
and T
instead of T
Ep
p
ΙEp
4.4 Time Overcurrent Protection for Residual Current
Figure 4-7
and
Figure
= 20
p
instead of T
;
3Ι0p
p
p
approx. 1.10 · Ι
Figure 4-7
and
Figure
instead of T
3Ι0p
p
p
Technical Data
4-8)
p
4-8)
419
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