Siemens SIPROTEC

Technical Data
4.9 Earth Fault Protection in Earthed Systems (optional)
SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
607
Figure 4-7 Tripping characteristics of the zero-sequence power protection
This characteristic applies for: S
ref
= 10 VA and T
3IOPAdd.T_DELAY
= 0 s.