[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]
Re: [TCML] Depot NST Measurements
I wrapped 100 turns of magnet wire around the clamp of my Fluke 335 clamp
meter. If the measurements I took with it are to be believed my paralled
15/30s are performing well below my expectations. I measured my 12/60 and
got a reasonable measurement of 5.5A (55mA) When I measured my 15/30s the
maximum I read at 270V was around 98mA.
On Mon, Jun 30, 2008 at 8:56 AM, <Sfxneon@xxxxxxx> wrote:
> But if you do have one, you can increase the sensitivity by looping the
> wire
> to be measured around the clamp several times. Each time the wire passes
> through the clamp, it will add to the reading the same amount of current as
> a
> single wire passing through the clamp.
>
> In other words, if your clamp-on ammeter will only measure 1 amp full scale
> on the lowest range, looping the wire back through the clamp will cause it
> to
> indicate .5 Amp full scale, or pass it through the clamp 10 times, and the
> FS
> reading will drop to about 100 mA.
>
> This may not be the most accurate method, but it will greatly extend the
> range of even older analog meters and give you a pretty close reading. It
> also
> somewhat isolates the meter from the circuit.
>
> Tony Greer
> *************
>
> In a message dated 6/30/2008 7:53:40 A.M. Central Daylight Time,
> pslawinski@xxxxxxxxx writes:
>
> << Ahhh, I see. So you don't have to have a fancy clamp meter? >>
>
>
>
>
> **************Gas prices getting you down? Search AOL Autos for
> fuel-efficient used cars. (
> http://autos.aol.com/used?ncid=aolaut00050000000007)
> _______________________________________________
> Tesla mailing list
> Tesla@xxxxxxxxxxxxxx
> http://www.pupman.com/mailman/listinfo/tesla
>
_______________________________________________
Tesla mailing list
Tesla@xxxxxxxxxxxxxx
http://www.pupman.com/mailman/listinfo/tesla