Siemens SIPROTEC 7UT633*-* N series - Page 406

3 Mounting and Commissioning
406
7UT613/63x Manual
C53000-G1176-C160-2
Figure 3-31 Zero sequence current measurement on a star-star transformer with compen-
sation winding
Figure 3-32 Zero sequence current measurement on an auto-transformer with compensa-
tion winding
Figure 3-33 Zero sequence current measurement on a zig-zag-winding