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2.2.8
Pickup Logic and Tripping Logic
The pickup annunciations of the individual phases (or Ground) and the individual elements are combined with
each other in such a way that the phase information and the Element that has picked up are issued.
Table 2-4
Internal indication
50-3 A PU
50-2 A PU
50-1 A PU
51 A PU
50-3 B PU
50-2 BPU
50-1B PU
51 B PU
50-3 C PU
50-2 C PU
50-1 C PU
51 C PU
50N-3 PU
50N-2 PU
50N-1 PU
51N PU
50-3 A PU
50-3 B PU
50-3 C PU
50N-3 PU
50-2 A PU
50-2 B PU
50-2 C PU
50N-2 PU
50-1 A PU
50-1 B PU
50-1 C PU
50N-1 PU
51 A PU
51 B PU
51 C PU
51N PU
(All pickups)
In the trip signals, the Element which initiated the tripping is also indicated.
SIPROTEC, 7SK80, Manual
E50417-G1140-C344-A5, Release date 11.2012
Pickup Indications of Overcurrent Protection
Display
2-6
2-8
2-12
2-6
2-8
2-12
2-6
2-8
2-12
2-7
2-10
2-13
2-6
2-6
2-6
2-7
2-8
2-8
2-8
2-7
2-12
2-12
2-12
2-13
2.2 Overcurrent Protection 50, 51, 50N, 51N
Output indication
„50/51 Ph A PU"
„50/51 Ph B PU"
„50/51 Ph C PU"
„50N/51NPickedup"
„50-3 picked up"
„50N-3 picked up"
„50-2 picked up"
„50N-2 picked up"
„50-1 picked up"
„50N-1 picked up"
„51 picked up"
„51N picked up"
„50(N)/51(N) PU"
Functions
FNo.
1762
1763
1764
1765
1767
1768
1800
1831
1810
1834
1820
1837
1761
75
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