Tesla labor! Nice setup!
Sent from my iPhone
> On Dec 6, 2018, at 11:48 AM, Teslalabor <teslalabor@xxxxxxxxxxx> wrote:
>
> Hi,
>
> I also built a nice 3-phase DC resonant system some years ago, it can run up to 12kW. Spark gap is driven by a DC motor, speed is controlled by variac from 0 - 6000rpm, which is 0-600 bps. The only thing which is still not built is the secondary coil... Got a little bit lazy the last years. Maybe I finish this project in the future, when I got retired :-) Here are 2 videos where I test the system with a halogen bulb dummyload instead of primary coil.
>
> https://www.youtube.com/watch?v=7GHl2L7xl2I
>
> https://www.youtube.com/watch?v=w5-x84V9Pqk
>
>
>> Am 06.12.2018 um 05:13 schrieb Greg Peters:
>> Thanks Jan,
>>
>> Yes it's a very nicely behaved coil. The 3 phase DC supply lets me get
>> multiple kW without upsetting the neighbours too much due to dimming lights
>> or surging, and the MOTs aren't overstressed much. I find it much more
>> user-friendly than my pig-powered single phase coil.
>>
>> I have more info on my blog at www.gregsstuff.com if you're interested.
>>
>>
>> My VFD is similarly protected to yours, normally it runs fine but for some
>> reason it was playing up that night. I think I need to get it into a
>> grounded box. To be honest I normally run it at 50Hz anyway so I may just
>> hard wire it at some point.
>>
>> Can I see your coil somewhere?
>>
>> Cheers,
>>
>> Greg
>>
>>> On Thu., 6 Dec. 2018, 10:41 am Jan Ohlsson <jan@xxxxxxxx wrote:
>>>
>>> That is very impressive for a mot coil!
>>>
>>> I use a vfd also on my coil. The motor is grounded to mains ground, the
>>> cable is shielded.
>>>
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