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Re: [TCML] Rotary Spark Gap Break Rate?



Hey Christopher...

quenching a rotory gap can be either a difficult thing to do ( depending on your supply voltage) or a rather simple thing to do. Some of the parameters that can cause concern in rotory gaps are the voltage, current, disc speed, and general number of electrodes. First off, the supply voltage can be somewhat pesky due to the amount of air it can jump to complete the circuit. On my coil ( it has a 30-36KV primary voltage) and is capable of jumping nearly 1.25" to the oncoming electrode and also can arc for about 1/2" after the electrode passes. ( my rotory is sync 1800 rpm) depending on how I time the disc to the 60Hz cycle of the transformer. I also use 2 stationary electrodes with 4 disc electrodes for a 120 BPS.

By increasing disc speed you create more air flow which aids in the quench process but to keep a decient break rate the disc needs to have fewer electrodes on the disc.

In your original post, you mentioned that you wished to have several ( was it 10?) electrodes to increase quenching of the arc. In an effect, it would work but the loss of charge time would result in low output from the secondary. Instead of having 120 bps at full capacity on the cap, you would end up with 360+ bps at less than 50% of the bang power your system is capable of...

Scot D


Christopher Karr wrote:

Bart,



You have to remember that we're talking about an ARSG, which isn't made to fire at a certain break rate, but, rather, to simply quench well.



Christopher

snipperzzz...



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