Long ago, the company had the budget, so we bought single phase for each line.
Thinking that we did not want any cross talk interference, which we had already
experienced in the real world.
Then we also had built the various configurations for supply power that we
used.
In essence measuring sources and load responses !
Sales people, good for prices only. cannot even get dimensions right.
On Friday, April 5, 2024 at 09:43:31 PM EDT, T.Sato <[email protected]>
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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