Siemens SIPROTEC 7UT613 series Manual page 151

Differential protection
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Figure 2-65
Logic diagram of the high-set stages I>> for phase currents (simplified)
7UT613/63x Manual
C53000-G1176-C160-2
2.4 Time Overcurrent Protection for Phase and Residual Currents
Figures 2-65 and 2-66 show the logic diagrams for the high-set stages I>> and
3I0>>.
151

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