measurement, 2 terminals (S2 and S1) for secondary current measurement and power supply for the relay and
2 terminals (D and C) to perform the testing.
The testing consists on the injection of 0.288 A in these last terminals providing a simulated primary current
value. These primary values depend on the CT type:
CT Type Injected Current Primary Current
CT01 0.288 A 7.2 A
CT02 0.288 A 14.4 A
CT03 0.288 A 28.8 A
CT04 0.288 A 57.6 A
CT05 0.288 A 115.2 A
CT06 0.288 A 230.4 A
The correct measurement of these values in the relay warrants that the whole current range will be measured.
NOTE
Test winding is not recommended for measurement accuracy or protection function accuracy claims/tests.
Ordering Specific CT for 7SR46 Argus Relay
The ELEQ specific CTs are to be used with 7SR46 Argus Relay:
Table 5-2 Order Specifications
Model Current Range Cable Diameter Class Article Number
SVA100-100-45 8 A to 28 A 45 mm 5P80 4G2401
SVA100-100-50 16 A to 56 A 50 mm 5P80 4G2205N
SVA100-100-50 32 A to 112 A 50 mm 5P80 4G2202N
SVA100-100-50 64 A to 224 A 50 mm 5P80 4G2203N
SVA100-100-50 128 A to 448 A 50 mm 5P80 4G2204N
GSA120-A-50 256 A to 896 A 50 mm 5P80 6G2200
For more information, refer to https://www.eleq.com/en/product/?sva100
Applications
5.2 Specific CTs
Reyrolle, 7SR46 Device, Manual 73
C53000-G7040-C103-1, Edition 10.2022
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