[lo_51-1, 1, en_US]
Figure 2-13
Logic Diagram of the 51-1 Inverse Time Overcurrent Protection for Phases
If parameter 1213 MANUAL CLOSE is set to 51-1 instant., 51-2 instant., 51-3 instant. or 51-4
instant., and manual close detection is used, a pickup causes instantaneous tripping even if the element is
blocked via a binary input.
The same applies to 79 AR 51-1 inst., 79 AR 51-2 inst., 79 AR 51-3 inst., 79 AR 51-4 inst..
Functions
2.2 Overcurrent Protection 50, 51, 50N, 51N
SIPROTEC Compact, 7SC80, Manual 79
E50417-G1140-C486-A8, Edition 07.2017
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