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RE: commercial cap failure
Jeff,
When I went to a rotary I had the same symptoms as Ed (erratic sounds sorta
like a car backfire). Rebuilding the primary circuit by shorting all the
leads and beefing up the connections along with adding 50% more primary
capacitance resolved those problems.
Brian B.
-----Original Message-----
From: Tesla List [mailto:tesla-at-pupman-dot-com]
Sent: Friday, April 21, 2000 11:27 AM
To: tesla-at-pupman-dot-com
Subject: Re: commercial cap failure
Original Poster: Esondrmn-at-aol-dot-com
In a message dated 4/20/00 2:58:39 PM Pacific Daylight Time,
tesla-at-pupman-dot-com
writes:
<< Ed
I had a saftey gap across the cap and it would fire on occasion. I was
using a series static gap in a box with a vacuume cleaner motor and a
variac for adjustment. It wasnt untill I added the rotory in place of
the series static gap that this happened. Everything was working fine
untill I added the rotory. any help is appreciated if I have a 60 cycle
resonance problem.This probably a dumb but is it possible that when I
added the rotory the added lead lenghts could of induced some kind of
resonance problem. These were the only two things that I changed in my
system
Best Regards Jeff.
>>
Jeff,
If you had a safety gap across the cap, I would think that you did not kill
it with overvoltage. What is the gap width set to? What are you using for
ballast for the pole transformer? When I was having this problem, the sound
coming from the rotary was not nice and smooth, there was frequent odd
noises
that sounded like small explosions or backfires - not exactly, but I don't
know how else to describe it. When I changed the ballast from the welder to
a large variac, this all went away.
Ed Sonderman