Re: GE Transformer ???

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

Original poster: "David Sharpe by way of Terry Fritz <twftesla-at-qwest-dot-net>" <sccr4us-at-erols-dot-com>

Ry

They are "Super-Bute" Potential Transformers.  I have
(3) 20:1 (2400V pri, 120Vsec).  The 30deg C, 55deg C
ratings are VA ratings at nominal and elevated temperatures.
60kV BIL is the ultimate dielectric strength of the transformer
to lightning and switching surges. They are quite heavy (about
50lb ea).  They are good for short duty cycle up to 2.5X
nameplate rating (~1.8-2.0kVA).  Would make a good
PT for a medium power VTTC.

WARNING:  These transformers are LETHAL, and may
require ballasting even in VTTC service to prevent sudden
violent failure of HV components.

Regards
Dave Sharpe TCBOR
Chesterfield, VA. USA

Tesla list wrote:

> 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