Author Topic: Drsstc tank Cap testing  (Read 401 times)

Offline oneKone

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Drsstc tank Cap testing
« on: July 14, 2020, 05:56:46 AM »
Hopefully this is in the correct section, I guess this could be spanned across a few sections.

Sometime ago I bought a "dawncap" from AliExpress, its finally arrived! The capacitor was sold as being 0.44uf, 6kv and a rating of *presumably* 60a rms current.

Currently (I haven't checked in a few months) there's no real information about these capacitors making them an unknown, hopefully this thread can give some information on them!

My plan is to replace the MMC in my drsstc 3 and put this single capacitor, and slowly ramp up bus voltage/on-time to see if/at what point the capacitor starts to heat. For me this is a simplistic approach, would there be a better way of testing?


Cheers.

Offline Weston

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Re: Drsstc tank Cap testing
« Reply #1 on: July 14, 2020, 07:02:44 AM »
Testing the capacitor with your DRSSTC driver would most closely match the usage in a DRSSTC, so it should work pretty good.

The capacitor should be pretty low loss, so if you wind a matching inductor it will take little energy to sustain the max current at resonance. If you wanted to be overkill you could probably do a test setup like this: https://highvoltageforum.net/index.php?topic=808.0


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Re: Drsstc tank Cap testing
« Reply #1 on: July 14, 2020, 07:02:44 AM »

 


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