RE: Filters for non - NST primary

["Tesla list" <tesla@xxxxxxxxxx>]

Original poster: "Lau, Gary" <Gary.Lau@xxxxxx>

Charging current is far higher from a pig and would probably fry the
resistors.  Also, should the cap selection or other variables cause the
charging voltage to go too high, the MOV's would quickly fry.

As far as pigs on the web using chokes, all I can say is don't believe
everything you read on the web.  Pigs are bulletproof compared to NST's
and need no external protection, but you can add chokes if you think
they look nice.

Regards, Gary Lau
MA, USA


> Original poster: FIFTYGUY@xxxxxxx
>
> In a message dated 10/13/05 10:17:51 AM Eastern Daylight Time,
> tesla@xxxxxxxxxx writes:
>
>  > The Terry filter is only for NSTs.
>
>      How come? Why would it be unsuitable for a pig, MOT, PT, etc.? I
> don't see how it could hurt.
>      IIRC the pig setups I've seen on the Web *do* use the filtering
> chokes on the secondary lines. I understand weird resonances and
> other problems can occur with shunted transformers, such as NSTs,
> when using filter chokes. Has anybody determined if they are of
> harm/benefit on the larger systems?
>
> -Phil LaBudde
>