Siemens SIPROTEC 4 7SD80 Manual page 109

[logikdia-ueberspgschutz-phasenspg-wlk-310702, 1, en_US]
Figure 2-46
Overvoltage Phase-to-Phase
The phase-to-phase overvoltage protection operates just like the phase-to-ground protection except that it
detects phase-to-phase voltages. Accordingly, phase-to-phase voltages which have exceeded one of the
element thresholds 59-1-Vpp PICKUP (address 3712) or 59-2-Vpp PICKUP (address 3714) are also indi-
cated. Apart from that,
The phase–phase overvoltage protection can also be blocked via a binary input
SIPROTEC 4, 7SD80, Manual
E50417-G1100-C474-A2, Edition 02.2018
Logic diagram of the overvoltage protection for phase voltage
Figure 2-46 also applies generally.
2.8 Undervoltage and Overvoltage Protection (optional) 27/59
>59-Vphph BLOCK .
Functions
109