Connection Examples For Earth-Fault Application - Siemens Reyrolle 7SR45 Argus Device Manual

A.4

Connection Examples for Earth-Fault Application

Figure A-6 shows CT circuits connected to 1 A or 5 A of 7SR45 Argus relay. The CT and ground connections are
typical and measure the ground current of the primary CT only.
The application shows the use of 50G/51G protection functions. The remote trip via communication (through
BO with auxiliary input present) and binary input is possible.
[dw_argus-relay_with_erath-fault-appl, 2, en_US]
Figure A-6
Reyrolle, 7SR45, Device Manual
C53000-G7040-C101-2, Edition 09.2020
7SR45 Argus Relay with Earth-Fault Application
A.4 Connection Examples for Earth-Fault Application
Appendix
115