http://www.ga.com/very-high-voltage-capacitors
General Atomics makes them from 2 kV to 100 kV and they claim to be "in
stock"
Bob
------ Original Message ------
From: "Steve Gregory" <[log in to unmask]>
To: [log in to unmask]
Sent: 12/5/2018 2:41:56 PM
Subject: Re: [TN] (OT) High Voltage Pulse Caps
>There might be another place to look,
>https://www.eaglepicher.com/sites/default/files/EaglePicher_EnergeticDevicesCatalog_0.pdf
>
>Steve
>
>On Tue, Dec 4, 2018 at 11:55 AM Bob Landman <[log in to unmask]>
>wrote:
>
>> Chris,
>>
>> Many years ago I worked on an R&D project creating a very fast pressure
>> wave simulating an underground nuclear explosion. We used exploding bridge
>> wires in a water tank.
>>
>> We measured the pressure wave with a very fast piezo pressure transducer
>> connected via an amplifier to an oscilloscope with a Polaroid camera
>> attached.
>>
>> https://www.kistler.com/en/products/components/pressure-sensors/
>>
>> The capacitor was a huge metal encased oil filled capacitor with two large
>> insulated terminals on the top of it.
>>
>> I can't recall how we switched the capacitor to the two rods suspended in
>> the tank with a short fusible wire stretched between them but it may have
>> been a thyratron tube.
>>
>> https://en.wikipedia.org/wiki/Thyratron
>>
>> Examples:
>> https://www.ebay.com/p/High-Voltage-Oil-Filled-Capacitor-2uf-25kv/10020500178
>>
>> Bob
>>
>>
>> -----Original Message-----
>> From: TechNet <[log in to unmask]> On Behalf Of Nutting, Phil
>> Sent: Tuesday, December 04, 2018 11:34 AM
>> To: [log in to unmask]
>> Subject: Re: [TN] (OT) High Voltage Pulse Caps
>>
>> My suggestion is EFC-Wesco in Connecticut. Bob Fountain is their sales
>> guy. They have done several custom film capacitors for us to be used in
>> our high voltage power supplies running up to 180 kV. Granted the cap was
>> not run at the full 180 kV, but 30 kV and 40 kV is not uncommon for us.
>>
>> My 2 cents.
>>
>> Phil
>>
>> -----Original Message-----
>> From: TechNet [mailto:[log in to unmask]] On Behalf Of Chris Knudsen
>> Sent: Tuesday, December 04, 2018 11:02 AM
>> To: [log in to unmask]
>> Subject: [TN] (OT) High Voltage Pulse Caps
>>
>> Greetings TechNet community,
>>
>> We're having trouble with a custom cap supplier (first-time transaction),
>> which can (not-necessarily) remain nameless.
>>
>> If I can tap into the collective TN hive-mind:
>>
>> Has anyone had a good experience with a cap manufacturer that can supply
>> custom high energy caps with these type of specs:
>> Qty (2) Pulse Capacitors
>> 40 kV
>> 12.5 uF
>> for
>> 20,000 (20 k) Joules Max (pulse)
>>
>> Similar application:
>> https://en.wikipedia.org/wiki/Exploding_wire_method
>>
>> Very low duty cycle (1 or so shots per random day).
>>
>> Because of the above manufacturer issues, we are also interested in close,
>> and not-so-close, temporary substitutes to perform some basic system
>> functionality tests.
>>
>> I'm happy to receive responses off-line, or on TN if you feel others would
>> benefit.
>>
>> Regards,
>>
>> Chris
>> [log in to unmask]
>> ------------------------------------------------------------------------
>>
>
>
>--
>Steve Gregory
>Kimco Design and Manufacturing
>Process Engineer
>(208) 322-0500 Ext. -3133
>
>--
>
>
>
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