[7sj621-3spgswdl-sternp-v-schalt-20070413, 1, en_US]
Figure C-9 Voltage transformer connections for two voltage transformers in open delta voltage connec-
tion. In this connection, determination of zero-sequence voltage V0 is not possible. Functions
using zero sequence voltage must be disabled.
Note If the system only has 2 voltage transformers (open-delta connection), connect also the device in
opendelta connection and short-circuit the unused voltage input.
[7sj621-3spgwdl-kabelumbauw-e-n-wickl-20070413, 1, en_US]
Figure C-10 Voltage transformer connection only to open delta VT
Connection Examples
C.2 Connection Examples for Voltage Transformers 7SJ621, 7SJ622
SIPROTEC 4, 7SJ62/64, Manual 585
C53000-G1140-C207-8, Edition 08.2016
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