Re: Repost: NST VA Rating and Power Factor

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Bill Vanyo by way of Terry Fritz <twftesla-at-qwest-dot-net>" <vanyo-at-echoes-dot-net>



Tesla list wrote:
> 
> Original poster: "David Dean by way of Terry Fritz <twftesla-at-qwest-dot-net>"
<deano-at-corridor-dot-net>
> 
> Hi Bill,
> 
> Why don't you just hook the primaries of the 120V NSTs in series so you can
> use the full 240V? You can still parallel the secondaries together to get
> the higher current.

Forgive me if I'm a little dense, but will that work?  With three or
four NST's?

Also, my first two NST's were a 15/60 and a 15/30 (different
manufacturers), and I remember that I originally tried hooking the
primaries in series (I read somewhere that that was the "right" way to
do it), but neither side of either secondary was in phase with the other
- whereas when the primaries were hooked in parallel, they were in near
perfect phase.  Don't know if that makes sense, but it's what I
observed.

	- Bill


> 
> later
> 
> deano
> >
> > I want to use multiple american trannies on a 240 line (we have them
> > here in the US, for things like electric stoves and elctric clothes
> > dryers), stepped down to 120, for the sole purpose of being able to
> > parallel three or four 15/60's (I have three now, looking for fourth)
> > without tripping breakers.
> >
> > > Good luck, sorry aobut the l8ness of my reply
> > > Jason
> >
> > Thanks,
> > Bill
> >
> >
> >