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Technical Data
4.8 Unbalanced Load Protection
[ausloese-rueckfall-schieflast-iec-extrem-inv-030716-wlk, 1, en_GB]
Figure 4-15
Trip Time Curves acc. to ANSI
One of the tripping curves depicted in
The tripping times for Ι
Pickup Threshold
436
Dropout time and trip time characteristics of the inverse time unbalanced load stage, as per
IEC
Figure 4-16
/Ι
≥ 20 are identical to those for Ι
2
2p
and
Figure 4-17
on the right-hand side may be selected.
/Ι
= 20.
2
2p
approx. 1.10· Ι
2p
C53000-G1176-C230-5, Edition 09.2016
SIPROTEC 4, 7UT6x, Manual
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