Siemens SIPROTEC 7SJ62 - Pickup Logic and Tripping Logic

Functions
2.2 Overcurrent Protection 50, 51, 50N, 51N
SIPROTEC, 7SJ62/64, Manual
C53000-G1140-C207-2, Release date 01.2008
80
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 2-3 Pickup annunciations of the overcurrent protection
In the trip signals, the element which initiated the tripping is also indicated.
Internal Annunciation Figure Output Annunciation FNo.
50-3 A PU
50-2 A PU
50-1 A PU
51 A PU
2-4
2-6
2-10
„50/51 Ph A PU“ 1762
50-3 B PU
50-2 B PU
50-1 B PU
51 B PU
2-4
2-6
2-10
„50/51 Ph B PU“ 1763
50-3 C PU
50-2 C PU
50-1 C PU
51 B PU
2-4
2-6
2-10
„50/51 Ph C PU“ 1764
50N-3 PU
50N-2 PU
50N-1 PU
51N PU
2-5
2-8
2-11
„50N/51NPickedup“ 1765
50-3 A PU
50-3 B PU
50-3 C PU
50N-3 PU
„50-3 picked up“ 1767
50-2 A PU
50-2 B PU
50-2 C PU
50N-2 PU
2-4
2-4
2-4
2-5
„50-2 picked up“ 1800
50-1 A PU
50-1 B PU
50-1 C PU
50N-1 PU
2-6
2-6
2-6
2-5
„50-1 picked up“ 1810
51 A PU
51 B PU
51 C PU
51N PU
(also voltage-controlled /
voltage-restraint)
2-10
2-10
2-10
2-11
2-13
2-14
„51 picked up“ 1820
(All pickups) „50(N)/51(N) PU“ 1761
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