In order to save costs, it can be often used a two-phase isolated voltage transformer, which are connected to a
phase-to-phase voltage. In this case the phase sequence supervision is inactive and reliability restrictions when
connecting to the dead busbar must be accepted. Full two-channel redundancy is ensured.
[ve6-anschluss-zweipol-isoliert-030203-kn, 1, en_GB]
Figure C-5
Connection to a two-phase isolated voltage transformer (unearthed voltage transformer)
Connection Examples
C.2 Voltage Connectors
242 SIPROTEC 4, 7VE61 and 7VE63, Manual
C53000-G1176-C163-3, Edition 10.2017
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