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Re: PLEASE......need advice, help with power supply



Original poster: Tomas Stankevic <Tomas.Stankevic@xxxxxxxx>

Thank you very much for your answers, I am making two Coils at the moment, one small (65cm) and one big :)

Tomas





Tesla list wrote:
Original poster: "Aron Koscho" <kc5uto@xxxxxx>


Tomas,

You could use the 5Kv transformer with a voltage doubler for 10Kv DC at
500ma. This combine with an ASRSG would make for a very nice power
supply.

Aron



www.hvguy.com


-----Original Message-----
From: Tesla list [mailto:tesla@xxxxxxxxxx]
Sent: Friday, March 30, 2007 9:14 PM
To: tesla@xxxxxxxxxx
Subject: Re: PLEASE......need advice, help with power supply

Original poster: "Gerry  Reynolds" <gerryreynolds@xxxxxxxxxxxxx>

Hi Tomas,

Yes you can connect the two 5KW transformers together providing:

1.  The secondary of each in not center tapped grounded.
2.  If each transformer only has one bushing, you dont need to worry
about forming a center tap between the two transformers.  If two
bushings are available, you will need to ground one of them.
3.  You phase the primaries correctly so one transformer puts out a
negative voltage when the other transformer puts out a positive voltage.

I recommend that you DON'T USE these high power transformers until
you gain more experience.  These power levels can be deadly.  Use the
4.5KV NST for your first coil.

Gerry R.

>Original poster: Tomas Stankevic <Tomas.Stankevic@xxxxxxxx>
>
>Yes, I have 4.5kV NST (I will check the power). And also I can have
>two 5kV 5kW transformers. Can I connect them in series to get 10kV?
>
>Secondary coil is 2m x 30cm. Primary 20 windings 1.2cm copper
>tubing. Primary capacitor: I have a lot of high voltage capacitors
>so I can make any between 10 and 200 nF, according to transformer's
power
>
>So is it better to connect two 5kV in series or to use the 4.5kV NST
somehow?
>
>
>Thank you for advices, Tomas
>
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>Tesla list wrote:
>>Original poster: FIFTYGUY@xxxxxxx
>>In a message dated 3/27/07 1:24:25 A.M. Eastern Standard Time,
>>tesla@xxxxxxxxxx writes:
>>
>> >I have only 12kW, 4.5 kV NST transformer and some MOTs. I also can
>> >get some small 100W NSTs, but I need at least 5kW power.
>>
>>     Is that correct? You have a 12kW NST already??
>>
>>     I imagine 4 or 6 of your MOT's would get you pretty close to 5kW.
>>
>>-Phil LaBudde
>>
>>
>>
>>
>>----------
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