Author Topic: Gas Discharge Tubes for Marx Generator?  (Read 63 times)

Offline abstruse1

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Gas Discharge Tubes for Marx Generator?
« on: November 25, 2021, 05:55:53 PM »
Greetings.  I've been wondering about some way to allow oil immersion of Marx generators.  To that end, some kind of sealed spark gap comes to mind.  There are numerous gas discharge tubes available that might work, but they all are spec'd to have low discharge lives, e.g. <1,000.  It may be possible to extend this life by using over-spec'd GDTs, but they get large and expensive.

One might be able to build GDTs by simply enclosing a gap (tungsten electrodes) in an oilproof container, but I don't know how many cycles such a thing would last, or if it would fail almost immediately due to heat and/or pressure buildup.

Or perhaps simply immersing the gaps in oil, having a close enough spacing so that they'd still function properly.

Or one could design a Marx with the gaps located so they could be above the oil level, with the resistors & caps being submerged.  I don't know if such a remote gap would affect performance.

Does anyone have any experience with this?
Abstruse1
   Been working with electricity for 60 years and still getting a tingle!

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Gas Discharge Tubes for Marx Generator?
« on: November 25, 2021, 05:55:53 PM »

 


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