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Re: [TCML] Potential transformers and generators
Not necessarily - If the exciter in the generator max's out it tends to
self-limit due to core saturation. Most small gen-set's are actually
self-excited (permanent magnet) But things will get hot which makes for a
very unhappy alternator.
http://www.gobookee.net/get_book.php?u=aHR0cDovL3d3dy5wZWFyZW4uY2EvZHVubGl0ZS9CcnVzaGxlc3NBbHRlcm5hdG9ycy5wZGYKQnJ1c2hsZXNzIEFsdGVybmF0b3JzIC0gUGVhcmVu
- b
> Not a good idea. This is how Tesla took down the Colorado Springs power
> plant. Running a generator into what looks like a dead short to it will
> most likely result in a new generator/engine set, but you might get lucky
> for a few minutes.
>
>
> Matt D.
>
>
>
> -----Original Message-----
> From: jhowson4 <jhowson4@xxxxxxxxxxx>
> To: Tesla Coil Mailing List <tesla@xxxxxxxxxx>
> Sent: Mon, Jul 29, 2013 1:53 pm
> Subject: [TCML] Potential transformers and generators
>
>
> Hello all,
>
> First off, If I have a matched pair of potential transformers. Can I
> series
> them up provides the phases are properly matched? Im confident the answer
> is
> yes, but just checking.
>
> Secondly we have a hefty generator, 5.5 Kva I think. It's rather new,
> and I
> don't want to kill it. What's everyones opinion on using it to drive a
> coil?
> Since it is only 5.5 Kva will it limit it self to the max current. And
> would a
> ballast for my pts still necessary.
> My inclination says, no and yes. But it would be convienient if I didn't
> need a
> ballast, so im asking.
>
> Cheers
> John "Jay" Howson IV
>
> Sent from a tiny phone with a tiny keyboard.
>
> ----- Reply message -----
> From: coils@xxxxxxxxx
> To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
> Subject: [TCML] srsg to vari speed rsg
> Date: Sun, Jul 28, 2013 10:52 pm
>
>
>
> nice gap Jay! looks like you like making things too. Is that a nylon
> rotor
> shaft? If so, any concerns with heat on the electrode? I ask because I
> have
> managed to
> melt .375" G-10 at 8 kva, gonna try G-7 next.
>
> cheers
>
>
>
> On Sun 28/07/13 12:07 PM , jhowson4@xxxxxxxxxxx wrote:
>
>> Sort of how I built my ASRG
>> propeller style, I can remove electrodes easily, I can replace tungsten
>> easily,
>> and it uses a minimum amount of tungsten as well, cutting costs. Each
>> stationary electrode only has .75" of 1/4.
>> the rotary electrodes have 1.5" of 1/4" thoriated tungsten.
>> Brass is expensive stuff, but all the brass was procured cheaply on ebay
>> via some good deals over the course of a year or so.
>>
>> Designed to be a dual gap, for use in a split resonator power supply DC
>> coil, hence the double sided nature.
>> Still needs a few tweaks to be perfect for my tastes, but it does the
>> job
>> nicely currently on my test coil.
>>
>> check it out here
>> http://s139.photobucket.com/user/JHowson/library/Tesla%20Coils/Experimental
>> %20DC%20Tesla%20Coil%20%20%20code%20name%20TRON/4%20Rotary%20Spark%20Gap?so
>> rt=3&page=1[1]
>>
>> note: the second rotary electrode is missing in the pictures. I have not
>> installed it yet.
>>
>> Thanks,
>> John "Jay" Howson IV
>>
>> "Why thank you, I will be happy to take those electrons off your hands."
>>
>> ----- Original Message -----
>> From: "Scott Bogard"
>> To: "Tesla Coil Mailing List"
>> Sent: Sunday, July 28, 2013 1:46:10 PM
>> Subject: Re: [TCML] srsg to vari speed rsg
>>
>> I was thinking more a propeller gap with unused stationary electrodes,
>> that
>> could be reconnected at will. You could always add top capacitance to
>> cancel out the extra primary inductance when you cut your cap size,
>> assuming you have the power draw to support a larger top load, not sure
>> if
>>
>> that is applicable to your situation. But at any rate I love the ASRSG,
>> I
>> did sync once, and got poor results, switched to ASYNC and things worked
>> much better. I know now what I did wrong, poorly sized cap and all, but
>> I
>> still won't go back, ASYNC is too easy to build, and smaller caps are
>> cheaper, and I love the brightness only high BPS can afford.
>>
>> Scott Bogard.
>>
>> On Sun, Jul 28, 2013 at 2:42 AM, wrote:
>>
>> > Thanks for your thoughts Scott, I am using a 60:1 distribution
>> > transformer with an adjustable (gapped) inductive ballast.
>> > I am tapped out of primary inductance, so I cant really decrease my
>> cap.
>>
>> > I have a lot of flexibility though with the ballast. Thinking
>> > about the gap you suggest has me boggled, maybe something like Richard
>> > Hulls series quench rsg with swithchable stationary electrodes?
>> > What appeals to me, is that a vari speed gap can be adjusted on the
>> fly,
>>
>> > no stopping and fiddling. That is why I made the Freu phase shifter.
>> >
>> > This has really got me thinking about rotary gaps!
>> >
>> > cheers
>> >
>> >
>> >
>> > On Sat 27/07/13 12:31 PM , Scott Bogard wrote:
>> >
>> > > One thing you could do, is rig a system to do sync that has multiple
>> > > dis-connectable electrodes for 120/240/480 BPS, but again, if you
>> aren't
>> > > changing the tank cap size, only one range will actually serve your
>> > > purposes well... What type of transformer are you using? How is it
>> > > ballasted if at all?
>> > >
>> >
>> > _______________________________________________
>> > Tesla mailing list
>> > Tesla@xxxxxxxxxx
>> > http://www.pupman.com/mailman/listinfo/tesla [2]
>> >
>> _______________________________________________
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>>
>>
>> Links:
>> ------
>> [1]
>> http://webmail.sonic.net/parse.php?redirect=http://s139.photobucket.com/use
>> r/JHowson/library/Tesla%2520Coils/Experimental%2520DC%2520Tesla%2520Coil%25
>> 20%2520%2520code%2520name%2520TRON/4%2520Rotary%2520Spark%2520Gap%3Fsort%3D
>> 3%26amp%3Bpage%3D1[2]
>> http://webmail.sonic.net/parse.php?redirect=http://www.pupman.com/mailman/l
>> istinfo/tesla[3]
>> http://webmail.sonic.net/parse.php?redirect=http://www.pupman.com/mailman/l
>> istinfo/tesla[4]
>> http://webmail.sonic.net/parse.php?redirect=http://www.pupman.com/mailman/l
>> istinfo/tesla
>>
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