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NSG 3040 EMC test system
8.7 Pulsed Magnetic Field testing (-4-9) parameter setting
More information about variable voltage sources is available in section 14
“Accessories”.
8.8 Slow Damped Oscillatory Wave test (-4-18) parameter setting
The slow damped oscillatory wave immunity test simulates switching of dis-
connectors in HV/MV open-air substations, and is particularly related to the
switching of HV busbars, as well as to the background disturbance in industrial
plants as specified in IEC/EN 61000-4-18 and ANSI C37.90.1.
The NSG 3040-SOW is not only able to perform the slow damped oscillatory
wave immunity test according to both of these standards, but includes a wide
range of over-testing capabilities like higher pulse voltage, higher pulse repetition
rates and a selectable source impedance for tests closer to reality conditions.
Pulsed Magnetic Field test window
Parameter
Value
Field:
1 to 9999 A/m (in 1 A/m steps)
Polarity:
positive/negative/alternate
V to A/m ratio (Coil factor):
0.35 to 99.99
Impedance:
2 Ω
Repetition time:
s:
10 ... 600
min: 1 ... 10
Test duration:
1 to 9’999 pulses
Continuous
Phase synchronization:
asynchronous, synchronous 0° to 359º
(in 1º steps)
