RE: GE Transformer ???

["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 Ry

They are potential transformers. If you apply 120 volts to the secondary,
you will get 4200 volts on the primary side. With series phasing of the HV
sides and center grounding, you make a 8,400 volt supply with over 100 ma of
current. The rating of BIL 60kv means that the insulation can withstand a
short duration 60kv pulse. I am making a guess that BIL = breakdown
insulation level. AMB stands for ambient. 750VA-at- 30c AMB means that the
transformer is designed to operate continuously at 750 watts with air
temperature of 30 degree centigrade = 86 degrees F. As the ambient
temperature rises, the operating level in watts drops. You have a nice find.

Godfrey Loudner 

> -----Original Message-----
> From:	Tesla list [SMTP:tesla-at-pupman-dot-com]
> Sent:	Saturday, September 15, 2001 2:13 PM
> To:	tesla-at-pupman-dot-com
> Subject:	GE Transformer ???
> 
> Original poster: "by way of Terry Fritz <twftesla-at-qwest-dot-net>"
> <rblaisdell-at-juno-dot-com>
> 
> We "found" two GE transformers.  Unknown markings on it.
> The tag said the following
> 
> Type JVM 3 Voltage transfomer  35:1 Ratio
> BIL 60kv             Pri. Vol. 4200
> 750VA -at- 30c AMB  or 500VA -at- 55c AMB
> serial #'s 4210360 and 4210362
> 
> OK.
> What is BIL?
> What is "-at- 30c AMB" and "-at- 55c AMB"?
> 
> Does anybody know anything else about these?
> Thanks in advance
> Ry
> 
>