Siemens SIPROTEC 4 7XT71 Mode D'emploi page 35

12.2 Test Data
12.2.4 Electrical Tests
Standards
Standards:
Insulation Test
Standards:
High voltage test (routine test)
Output: Terminals 1, 2 against
all others terminals
High voltage test (routine test)
Auxiliary voltage: Terminals 17, 18,
case against all others terminals
High voltage test (routine test)
Outputs: Terminals 5, 7 and 9, 11 as
well as 6, 8 and 10, 12 against all
others terminals
Impulse voltage test (type test),
all circuits, class III
SIPROTEC 4, Injection Unit 7XT71, Product Information
C53000-B1175-C128-1, Edition 01.2014
IEC 60255 (product standard)
IEEE Std C37.90.0/.1/.2
VDE 0435
For more standards see also individual
functions
IEC 60255-5 and IEC 60870-2-1
4 kV (rms); 50 Hz
DC 3.5 kV
DC 3.5 kV
5 kV (peak);
1.2 µs/50 µs; 0.5 J;
3 positive and 3 negative impulses at inter-
vals of 5 s
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