Siemens SIPROTEC 4 7SJ61 Manual page 319

Tolerances
Times
Trip Time Characteristics according to IEC
Acc. to IEC 60255-3 or BS 142, Sectiont 3.5.2 (see also
The tripping times for Ι/Ι
Pickup threshold
Dropout Time Curves with Disk Emulation acc. to. IEC
Acc. to IEC 60255-3 or BS 142, Section 3.5.2 (see also
The dropout time curves apply to (Ι/Ι
Pickup Threshold IEC
IEC without disk emulation
SIPROTEC 4, 7SJ61, Manual
C53000-G1140-C210-6, Edition 05.2016
inv 5 % ± 15 ms
def. 1 % of setting value or 10 ms
≥ 20 are identical with those for Ι/Ι
51Ns
) ≤ 0.90
EEp
approx. 1.05 · setting value Ι
approx. 0,95 · pickup value
4.13 Ground Fault Detection (Sensitive/Insensitive)
Figure 4-1 and Figure 4-2)
= 20
EEp
approx. 1.10 · Ι
Figure 4-1 and Figure 4-2)
for Ι /Ι ≥ 0,3; this corresponds to
EEp EEp N
Technical Data
EEp
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