Siemens SIPROTEC 5 Manual page 101

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Figure 3-51
If you answer the question with Yes, then DIGSI 5 will recalculate the filtering time (threshold values) in the
active secondary view. For the new secondary transformer current 5 A, the new secondary threshold value
obtained is 1.50 A (0.300 A x· 5 A = 1.50 A ). The primary and percent values remain unchanged.
The following figure shows the newly calculated threshold value in the secondary view.
SIPROTEC 5, Fault Recorder, Manual
C53000-G5040-C018-5, Edition 11.2017
Query after Changing the Transformer Data (Setting View: Secondary)
3.7 General Notes for Setting the Threshold Value of Trigger Functions
System Functions
101