RE: Re-configuring X-Ray Transformers

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

Original poster: "Loudner, Godfrey by way of Terry Fritz <twftesla-at-qwest-dot-net>" <gloudner-at-SINTE.EDU>

Hi Jack

There's a heck of a lot of wire in those HV windings, making for much
impedance. You would need 100kV impressed on the HV windings to circulate
the normal full-load current of 400 mA. The 20,000 volts is not enough to
overcome the impedance to circulate a current of 2 amps. Turns must be
removed from the HV windings to lower the impedance.

Was it costly to get two x-ray transformers together with their control
panels. There are many useful devices in the control panels.

Godfrey Loudner 

> -----Original Message-----
> From:	Tesla list [SMTP:tesla-at-pupman-dot-com]
> Sent:	Tuesday, January 29, 2002 2:09 PM
> To:	tesla-at-pupman-dot-com
> Subject:	Re: Re-configuring X-Ray Transformers  
> 
> Original poster: "Jack King by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <speakernut-at-yahoo-dot-com>
> 
> 
> 
> > >  but I fear the wire awg size may be a hair
> > > too small (pun intended) to sustain even the short
> > > term current I need (sometimes around 800 ma - 1
> > amp.
> > 
> > Well, for that much current out, you need big
> > current in. So the primary
> > could be just as much a
> > problem. For 15KV -at- .500 AMPS , using 220 VAC in you
> > need 34 AMPS primary
> > current.
> 
> If a transformers specs were say 400 MA -at- 100 KV, is
> it not true that I could expect say 2 amps -at- 20 KV? Of
> course the secondaries wire size would have to be of
> substantial gauge to cope with the increased current:
> Wouldn't the PRIMARY wire awg size already be
> adequate?
> 
> NeonUT Jack
> 
>