
Logic of the Advanced Stage
[lodocp31-141013, 1, en_US]
Figure 6-50
Logic Diagram of the Directional, Definite-Time Overcurrent Protection, Phases - Advanced
Directional Mode (Basic and Advanced Stage)
You use the
Directional mode
parameter to define whether the stage works in a forward or reverse direc-
tion.
Direction determination itself works across stages (see section
).
Non-Directional Pickup, Voltage Memory (Basic and Advanced Stage)
If a 3-phase close-up fault occurs, all 3 phase-to-ground voltages drop to almost 0. If this happens, direction
determination can fall back on a voltage memory (see chapter l
). If no voltage measure-
Protection and Automation Functions
6.6 Directional Overcurrent Protection, Phases
412
SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017
Summary of Contents for 7SJ82
Page 8: ...8 SIPROTEC 5 Overcurrent Protection Manual C53000 G5040 C017 8 Edition 07 2017 ...
Page 38: ...38 SIPROTEC 5 Overcurrent Protection Manual C53000 G5040 C017 8 Edition 07 2017 ...
Page 60: ...60 SIPROTEC 5 Overcurrent Protection Manual C53000 G5040 C017 8 Edition 07 2017 ...
Page 186: ...186 SIPROTEC 5 Overcurrent Protection Manual C53000 G5040 C017 8 Edition 07 2017 ...
Page 194: ...194 SIPROTEC 5 Overcurrent Protection Manual C53000 G5040 C017 8 Edition 07 2017 ...
Page 966: ...966 SIPROTEC 5 Overcurrent Protection Manual C53000 G5040 C017 8 Edition 07 2017 ...
Page 1072: ...1072 SIPROTEC 5 Overcurrent Protection Manual C53000 G5040 C017 8 Edition 07 2017 ...
Page 1236: ...1236 SIPROTEC 5 Overcurrent Protection Manual C53000 G5040 C017 8 Edition 07 2017 ...
Page 1306: ...1306 SIPROTEC 5 Overcurrent Protection Manual C53000 G5040 C017 8 Edition 07 2017 ...
Page 1370: ...1370 SIPROTEC 5 Overcurrent Protection Manual C53000 G5040 C017 8 Edition 07 2017 ...
Page 1404: ...1404 SIPROTEC 5 Overcurrent Protection Manual C53000 G5040 C017 8 Edition 07 2017 ...
Page 1576: ...1576 SIPROTEC 5 Overcurrent Protection Manual C53000 G5040 C017 8 Edition 07 2017 ...
Page 1614: ...1614 SIPROTEC 5 Overcurrent Protection Manual C53000 G5040 C017 8 Edition 07 2017 ...
Page 1634: ...1634 SIPROTEC 5 Overcurrent Protection Manual C53000 G5040 C017 8 Edition 07 2017 ...