Siemens SIPROTEC 4 7UT6 Series Manual page 507

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Figure C-3
SIPROTEC 4, 7UT6x, Manual
C53000-G1176-C230-5, Edition 09.2016
Connection example 7UT613 for a three-phase power transformer with starpoint former and
current transformer between starpoint and earthing point
Connection Examples
C.1 Current Transformer Connection Examples
507