Siemens SIPROTEC 4 7UT6 Series Manual page 424

Technical Data
4.4 Time Overcurrent Protection for Residual Current
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Figure 4-9
424
Dropout time and trip time curves of the inverse time overcurrent protection, acc. to ANSI/IEEE
SIPROTEC 4, 7UT6x, Manual
C53000-G1176-C230-5, Edition 09.2016