Damped oscillatory wave immunity test system EMC Partner AG
IEC61000-4-18, ANSI C37.90

Damped oscillatory waves are phenomena associated with the opening and closing of High Voltage (HV) busbars in power transmission stations and High Altitude Electromagnetic Pulses (HEMP).
The IEC61000-4-18 standard extends to existing 100kHz and 1MHz frencies with additional fast damped oscillatory waves at frequencies of 3MHz, 10MHz and 30MHz.
EMC PARTNER designed the MIG-OS-OM-EXT to add fast oscillatory wave capability to existing EMC PARTNER generators.
MIG-OS-OS1 and MIG0603OSI generators deliver 100kHz and 1MHz slow damped oscillatory waves that were specified in the IEC61000-4-12 Ed1 standard.
For power applications, the equipment to be tested is generally connected to 3-Phase power lines. CDN3000A-06-25 enables coupling of both fast and slow oscillatory waves.
HEMP applications require capacitive coupling. CN-EFT1000 enables coupling into unshielded wires.

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