Pickup Logic And Tripping Logic - Siemens SIPROTEC 7SJ62 Manual

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