Siemens SIPROTEC 4 7UT6 Series Manual page 381

[nullstrom-dreieckwicklung-7ut612-021026-rei, 1, en_GB]
Figure 3-40
[nullstrom-geerdet-laengsreaktanz-021026-rei, 1, en_GB]
Figure 3-41
[nullstrom-einphasentrafo-7ut612-021026-rei, 1, en_GB]
Figure 3-42
SIPROTEC 4, 7UT6x, Manual
C53000-G1176-C230-5, Edition 09.2016
Zero sequence current measurement on a delta winding with neutral earthing reactor within
the protected zone
Zero sequence current measurement on an earthed series reactor (reactor, generator, motor)
Zero sequence current measurement on an earthed single-phase transformer
Mounting and Commissioning
3.3 Commissioning
381