Siemens SIPROTEC 4 7XT71 Series, Manual, Page: 110 / 122

Tests
Electrical Tests
Regulations
Standards IEC 60255-26 (product standards)
IEEE Std C37.90
For more standards, see the individual tests
Installation Requirements
Overvoltage category III
Degree of pollution 2
Protection class 1
Dielectric and Safety Tests
Standard IEC 60255-27
Voltage test (routine test) output: Terminals 1, 2 with
respect to all other terminals DC 3.85 kV, 1 s
Voltage test (routine test) auxiliary voltage: Terminals
17, 18, housing with respect to all other terminals DC 3.85 kV, 1 s
Voltage test (routine test) outputs: Terminals 7 to 14
with respect to all other terminals DC 0.5 kV, 1 s
Voltage test (type test) output: Terminals 1, 2 with
respect to all other terminals DC 5.8 kV, 1 min
Voltage test (type test) auxiliary voltage: Terminals
17, 18, housing with respect to all other terminals DC 3.5 kV, 1 min
Voltage test (type test) outputs: Terminals 7 to 14
with respect to all other terminals DC 2.5 kV, 1 min
Surge immunity test (type test), output and auxiliary
voltage, class III 6 kV (peak value)
1.2 μs/50 μs; 0.5 J;
3 positive and 3 negative impulses at intervals of 5 s
EMC Tests for Immunity (Type Tests)
Standards IEC 60255-1, IEC 60255-26 (product standards)
EN 61000-6-2 (generic standard)
For more standards, see the individual tests
High-frequency test (1 MHz), class III IEC 61000-4-18,
IEEE C37.90.1 2.5 kV (peak); 1 MHz;
τ = 15 μs;
400 pulses per second;
Test duration: 2 s, Ri = 200 Ω
Electrostatic discharge test, test IEC 61000-4-2 8 kV contact discharge
15 kV air discharge
both polarities;
150 pF; Ri = 330 Ω
8.2
8.2.1
Technical Data
8.2 Tests
48 SIPROTEC 4/5, Injection unit 7XT71, Manual
C53000-B1174-C128-8, Edition 05.2020