Siemens siprotec 7SD5 User Manual page 549

Line differential protection with distance protection
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4.8 Earth Fault Protection in Earthed Systems (optional)
Figure 4-6
Tripping characteristics of the zero-sequence power protection
This characteristic applies for: S
= 10 VA and T3I
= 0 s.
ref
OPAdd. T_DELAY
549
7SD5 Manual
C53000-G1176-C169-1

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