Siemens siprotec SJ62 User Manual page 484

Trip Time Curves acc. to ANSI
Tolerances
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015
It can be selected one of the represented trip time characteristic curves in the figures 4-8 and
4-9 each on the right side of the figure.
≥ 20 are identical to those for I
The trip times for I /I
2 2p
Pickup Threshold
Pickup Threshold I
2p
Time for 2 ≤ I/I ≤ 20
2p
4.10 Negative Sequence Protection 46-TOC
/I = 20.
2 2p
Approx. 1.10· I
2p
3 % of setting value or 10 mA for I
or 50 mA with I = 5 A
Nom
5 % of reference (calculated) value + 2 % current
tolerance, respectively 30 ms
= 1 A
Nom
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