Connection Examples; A.3 Connection Examples - Siemens SIPROTEC 7SD80 Manual

A.3

Connection Examples

Figure A-7 Current transformer connections to three current transformers and neutral-point current
(ground current) (Holmgreen connection) standard connection, suitable for all power systems
(neutral point in line direction)
Figure A-8 Current transformer connections to three current transformers and neutral-point current
(ground current) (Holmgreen connection) standard connection, suitable for all power systems
(neutral point in busbar direction)
SIPROTEC, 7SD80, Manual
E50417-G1140-C474-A1, Release date 09.2011
Appendix

A.3 Connection Examples

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