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[lo-ip-stufe-gerichtet-20101108, 1, en_US]
Figure 2-31
Pickup Logic and Tripping Logic
The pickup signals of the individual phases (or ground) and of the individual elements are interlinked in such a
way that both the phase information and the element which has picked up are indicated
SIPROTEC 4, 7SD80, Manual
E50417-G1100-C474-A2, Edition 02.2018
Logic diagram of the 67 TOC element (directional, inverse time overcurrent protection) -
example for IEC characteristic
Functions
2.4 Backup overcurrent
(Table
2-2).
81
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