[Prev][Next][Index][Thread]
cap explosion & rf-interference
----------
From: Zuma /or CJ [SMTP:mwise-at-ns.sosis-dot-com]
Sent: Sunday, March 08, 1998 4:35 PM
To: Tesla List
Subject: Re: cap explosion & rf-interference
Tesla List wrote:
>
> ----------
> From: solva-wijnschenk [SMTP:solva-at-xs4all.nl]
> Sent: Sunday, March 08, 1998 4:57 AM
> To: tesla-at-pupman-dot-com
> Subject: cap explosion & rf-interference
>
> hello all,
>
> I've had exploding caps thrice already and I don't understand why
> .
> I am using a ~10 KV 5 KVA transformer and a variac as powersource. RQ
> gap of 4 tubings with total opening of about 1", 8 turns copper tubing
> (outer diam=34 cm, inner diam = 21 cm, 7 turns), sec=2290 turns, 33,66"
> windingheight, 790 m longer, 4,33"diam form), diff. toroids
>
> No safetygaps, no RF-chokes. Caps were saltwatercaps, and last cap was a
> 25 kvDC 0.05 uF one. I am planning to build my own pe-caps with two
> sheets of 2mm each and kitchenfoil. But will they hold???? and how come
> the earlier ones failed???
>
> Thanks Arwin
Your gap setting sounds way to wide for 10kv. Your secondary has way to
many turns in my opinion, but this would not cause your caps to explode.
So my advice would be to lower your gap setting to around a total of
about .25". You could maybe go up to about .5" but I doubt it.
Chris