Siemens SIPROTEC 4 7XT71 Series, Manual, Page: 111 / 122

Radiated HF field interference, frequency sweep
IEC 61000-4-3, class III 10 V/m, 80 MHz to 1 GHz;
80 % AM;
1 kHz and spot frequencies, 10 V/m;
1 GHz to 2.7 GHz;
80 % AM, 1 kHz
Fast transient bursts, class IV, IEC 61000-4-4,
IEEE C37.90.1 4 kV; 5 ns/50 ns; 5 kHz;
Burst length = 15 ms;
Repetition rate: 300 ms
both polarities;
Ri = 50 Ω; test duration: 1 min
Conducted HF, amplitude-modulated, class III
IEC 61000-4-6 10 V; 150 kHz to 80 MHz,
80 % AM;
1 kHz and spot frequencies
Power frequency magnetic field immunity test,
IEC 61000-4-8 0.5 mT; 50 Hz
30 A/m continuous;
300 A/m for 3 s
50 Hz
Oscillatory surge withstand capability ANSI/
IEEE C37.90.1 2.5 kV (peak)
1 MHz, τ = 15 μs;
400 pulses per second;
Test duration: 2 s, Ri = 200 Ω
Radiated electromagnetic interference IEEE C37.90.2 20 V/m
80 MHz to 1 GHz
80 % AM, 1 kHz
Damped oscillations IEC 61000-4-18 2.5 kV (peak), 100 kHz, 40 pulses per second;
Test duration: 2 s; Ri = 200 Ω
High-energy surge voltages/surge IEC 61000-4-5 Pulse: 1.2 µs/50 µs
Auxiliary voltage Common mode: 2 kV; 12 Ω; 9 μF
Diff. mode: 1 kV; 2 Ω; 18 μF
0.5 Hz to 4 Hz output Common mode: 2 kV; 42 Ω; 0.5 μF
Diff. mode: 1 kV; 42 Ω; 0.5 μF
Measuring output (cable shield) Common mode: 2 kV; 2 Ω coupling into shield
EMC Tests for Noise Emission (Type Test)
Standards IEC 60255-26 (product standard)
IEC 61000-6-4 (generic standard)
Radio disturbance voltage on lines, auxiliary voltage
only, IEC-CISPR 22 150 kHz to 30 MHz, limit class A
Disturbance-field strength IEC-CISPR 11 30 MHz to 1000 MHz limit class A
Technical Data
8.2 Tests
SIPROTEC 4/5, Injection unit 7XT71, Manual 49
C53000-B1174-C128-8, Edition 05.2020