Thread-topic: Need Energy Discharge Capacitor Information
I originally tried to get information from Aerovox about my unit. They said that they had no record of it because it was made in 1992 (I presume from the serial number). I assumed that they would have records of all such huge capacitors but I guess not.
I am think of buying another one of the Aerovox capacitors (PM-series, 102 uF, 22 KV) and connecting it in parallel with the one that I already have. This would give me a combined maximum energy of 48 KJ for mayhem. My primary reason for doing this though is to get the same energy by charging to a lower voltage to minimize VR and thus extend capacitor life. The same E-Bay seller that I bought my current unit from is offering another one. Any thoughts?
Steve
----- Original Message -----
From: "Bert Hickman" <bert@xxxxxxxxxxxxxxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Monday, June 18, 2018 9:51:22 AM
Subject: Re: [TCML] Need Energy Discharge Capacitor Information
Hi Chris,
These are also heavy-duty energy discharge caps, using a kraft
paper-foil dielectric system. The Aerovox PM series are all rated at 20%
voltage reversal, and no self-healing.
The low capacitance and dielectric system for your caps limit their use
to low pulse-rate, very high-voltage applications, such as flash X-ray,
Marx generators, exploding wire, or rock fragmentation work. The
dielectric system will be fairly lossy for lower-voltage oscillatory
applications, and the stored energy is limited for coin shrinking since
work-coil flashover limits maximum cap voltage to 20-25 kV.
You might be able to get more information by directly contacting the
folks at Aerovox. Unfortunately, many of their energy discharge caps are
custom designs. This often binds Aerovox to non-disclosure agreements
with their customers, preventing them from releasing even basic
capacitor specs...
Best wishes,
Bert
Chris Reeland wrote:
> Okay, to get back on track to the topic, I have been following this with
> interest.
> I also have a pair of energy discharge caps that I have picked up last year
> for a future project that I can't find any info either. Any info would be
> appreciated.
> Aerovox:
> PM104YW003D04
> 3.110 uF and 3.364 uF
> 100,000VDC
> 15K Joules
>
> They are in a stainless steel case.
>
> A couple of pictures also if I made a typo...
>
> https://photos.app.goo.gl/wPq4WEvYLuGbXKqM9
>
> https://photos.app.goo.gl/jTgwWWiTbqaEA9ph7
>
> https://photos.app.goo.gl/LHnuy85eBTaSZUP38
>
> Thanks,
> Chris
>
> Sent from my LG V20
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>
>
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