The filter is probably designed for 50Hz or 60 Hz mains. It probably
isn't saturating at a higher input frequency, but your voltage
measurements indicate that it may be resonating. I think you need a
filter specifically designed for 400 Hz mains.
======================================================================================
Best wishes John Woodgate OOO-Own Opinions Only
www.woodjohn.uk
Rayleigh, Essex UK
Istae nunc praetereunt nisi non ubicumque
On 2021-10-27 10:56, Price, Andrew (Leonardo, UK) wrote:
Hi members
Can anyone offer some advice.
Have issues with EMC Chamber RF Filter 3 phase.
Using 115V 400Hz single phase supply from a static convertor, filter
looks like it is saturating.
Ambient levels failing between 6kHz to 150kHz.
Voltage of phase at static convertor 115.8Vrms but at EUT on bench 132Vrms
Regards
Andy
*Andrew Price*
Integrated Sensing & Protection (ISP)
Prinicpal Environmental Engineer (EMC)
Leonardo UK
Sigma House,
Christopher Martin Rd,
Basildon
SS14 3EL, UK
Tel EMC LAB : +44 (0)1268 883308
Mobile: +44 (0)7507 854888
[email protected]
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A company registered in England & Wales. Company no. 02426132
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