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Re: [TCML] NIST High Voltage Laboratory Testing / Safety Reference



Dave,

On second thought, these pole pigs may be a bit too big for my taste,
especially the weight aspect.  Ouch!

Bob. 
On Mon, 01 Sep 2014 10:47:14 -0400 David Speck <Dave@xxxxxxxxxxxxxxxx>
writes:
> Bob,
> 
> Glad to help.  Feel free to ask any more questions you might have.
> 
> There are several photos of a semi trailer full of pole pigs in 
> Yurtle's 
> photo set, but it was not clear to me that he was actually going to 
> use 
> one of those in his setup.
> 
> Upon closer inspection, I see a label of "25" on one of them at the 
> 
> lower left side of the trailer, indicating a probable 25 KVA rating. 
>  A 
> 200 amp household utility service at 240 VAC could theoretically 
> provide 
> 24 KVA at the maximum rating, but you would need a really big 
> Variac, 
> power control system, and inductive ballast to use one of those at 
> its 
> full power rating.
> 
> You can certainly use a pole transformer at less than its max 
> ratings, 
> and can actually push them to 50% or even 100% over their nameplate 
> 
> ratings for a short time.  Only problem is that a transformer of 
> this 
> size probably weighs 500# - 700#, so wrangling it becomes a problem. 
>  
> You wouldn't want to drop one of those on your foot.
> 
> Dave
> 
> On 9/1/2014 1:00 AM, rd_parker@xxxxxxxx wrote:
> > Dave,
> >
> > Thanks a million for your reply; you have given much to think 
> about.
> >
> > Bob in Bellflower.
> 
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