RE: possible pig ballasts on ebay

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

Original poster: "David Dean by way of Terry Fritz <twftesla-at-qwest-dot-net>" <deano-at-corridor-dot-net>

Hi

200uH gives a reactance of 0.075398224 ohm at 60Hz, so would let a LOT of
current pass.
The description you give says something about 5A DC. Is this a saturable
reactor of some kind?

> -----Original Message-----
> From: Tesla list [mailto:tesla-at-pupman-dot-com]
> Sent: Tuesday, September 18, 2001 8:07 AM
> To: tesla-at-pupman-dot-com
> Subject: possible pig ballasts on ebay
>
>
> Original poster: "Fred Bultman by way of Terry Fritz
> <twftesla-at-qwest-dot-net>" <royaloakmin-at-home-dot-com>
>
> Hi everyone,
>  While surfing e-bay I found these inductors:
> <http://cgi.ebay-dot-com/aw-cgi/eBayISAPI.dll?ViewItem&item=1638854592> >http://c
> gi.ebay-dot-com/aw-cgi/eBayISAPI.dll?ViewItem&item=1638854592.
>
> Does anyone know if they would work for a pig or what current flow 200
> microhenrys relates to?
>
> Thanks,
> Jim Bultman
> G-3
> G-1141
>
> The seller sent me this description:
>
> Approx. Weight:  35-40 lbs
> Dimensions:  190.5 mm (length)
> 203.2 mm (Depth)
> 181 mm (Height)
> Description:       The Inductor is intended to provide the power interface
> between the power electronics and conventional utility power grids.
> Windings and coil assemblies shall be suitably arranged to assure proper
> operation for 95 % humidity levels.  Design Requirements are as follows:
> 1.  Maximum operating ambient temperature is 155 deg F.  Minimum
> operating ambient temperature is - 20 deg F.
>                 2.  All insulating materials are to meet or
> exceed NEMA ST20
> standards and shall be rated for 220 deg C Underwriters Laboratories
> Component Recognized insulating system.
>         3.  Design shall be suitable for total distortion levels up
> to 10 % with any one frequency less than 5 %
> 4.  Inductor losses shall be 100 watts maximum for core and winding
> at normal ratings.
>         5.  Input phase DC current is 5 amp maximum.
>         6.  Sound levels generated by the transformer at full load
> shall not to exceed 55 dB.
>         7.  Design life of the transformer shall exceed 50,000 hours
> of continuous operation.
>         8.  Weight of the completed transformer including input and
> output termination lugs shall not exceed 40 pounds.
>        9.  Minimum Inductance and mechanical construction shall
> be designed
> to provide120 micro-henrys at 400 amps for 10 sec.
>        10.  Hypot winding to core shall withstand 3KV AC for one minute.
> The external Inductor shall be rated for continuous operation at the
> conditions listed below:
> Inductance 200 micro-Henrys
> Current Rating 200 Amps
> Frequency 45 Hz to 63 Hz
> Ambient Temp 70 deg C
> Temperature Rise 100 deg. C max.
> DC current 5 amps
>
>
>