Siemens 7SR18 Solkor - Typical Current Transformer Configurations

7SR18 Installation Guide
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5.5 Typical Current Transformer Configurations
Relay Current
Configuration
Setting
Description Connection
In 50G/51G -
Measured E/F
IREF 64H – Measured
Restricted E/F
Ia, Ib, Ic
In
CT/VT CONFIG:
Phase Current
Input
Phase CT Ratio
50/51 - Phase
Overcurrent
50N/51N -
Derived E/F
Selects 1 or 5A
CT ratio for
primary meters