It may be worth noting at any LISN using magnetic cores/elements in the
50uH bit, must be calibrated at the maximum rated current to verify that
saturation isn't a problem.
On 4/5/2024 9:56 PM, Brent DeWitt wrote:
In my opinion, all of this is rather simple. Any LISN, ANSI or CISPR,
references the noise to "ground". Any conductor not being measured
should be terminated in 50 ohms. Whatever network used needs to make
that so. Take your pick.
On 4/5/2024 9:43 PM, T.Sato wrote:
On Fri, 5 Apr 2024 22:01:29 GMT,
Brian Gregory <[email protected]> wrote:
Hello and Happy Friday, I've got a sales guy telling me our
120/240V EUT needs two pair of single-phase LISNs for our CE test
bench.That's only slightly cheaper than a 3-phase unit at > 50A, but
very bulky. Can someone remind me why I'd need 4, 50A single-phase
LISNs for our unit? I could see 3 (one for the neutral) but I'm not
so savvy on EMC test equipment.
I think you can use either single 3-phase (usually 4 conductors + PE)
LISN
or two single-phase (2 conductors + PE) LISNs whichever you like,
although
I would prefer to use a single 3-phase LISN.
BTW, there maybe confusion with the term "single-phase LISNs" here.
Is it LISNs commonly used for single-phase AC supply?
Or is it LISNs for an single power supplying conductor?
Regards,
Tom
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