Siemens SIPROTEC 4 7SD80 User Manual

Connection Examples for Current and Voltage Transformers
[anschl-3-stromwdl-sternpunktstrom-060606, 1, en_US]
Figure C-1 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)
[anschl-3-stromwdl-sternpkt-110301, 1, en_US]
Figure C-2 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)
C.1
Connection Examples
C.1 Connection Examples for Current and Voltage Transformers
314 SIPROTEC 4, 7SD80, Manual
E50417-G1100-C474-A2, Edition 02.2018

Siemens SIPROTEC 4 7SD80 Specifications

General

Brand	Siemens
Model	SIPROTEC 4 7SD80
Category	Power distribution unit
Language	English