Siemens Reyrolle 7SR46 - Page 45

Logic of the Function (51-n)
[lo_7sr46_TimeDelayedOvercurrentFn, 1, en_US]
Figure 3-3
Logic Diagram of the Time-Delayed Overcurrent Protection (51)
The following characteristic curves are supported by 51-n:
•
DTL
•
IEC-NI
•
IEC-VI
•
IEC-EI
•
IEC-LTI
•
ANSI-MI
•
ANSI-VI
•
ANSI-EI
Functions
3.4 51 Time-Delayed Overcurrent – Phase
Reyrolle, 7SR46 Device, Manual 45
C53000-G7040-C103-1, Edition 10.2022