Siemens SIPROTEC 4 7UT6 Series - Page 427

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Figure 4-12
Dropout time and trip time curve of the inverse time overcurrent protection, acc. to ANSI/IEEE
Technical Data
4.4 Time Overcurrent Protection for Residual Current
SIPROTEC 4, 7UT6x, Manual 427
C53000-G1176-C230-5, Edition 09.2016