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Re: [TCML] How do they ballast BIG coils?



On 9/13/12 6:10 AM, Teslalabor wrote:
How is it possible to limit current by the use of a variac? I mean,
there is no air gap in the core or such things. Tried it several times
in the past on my teslacoils to limit current with a normal variac and I
never hat success with that.


Perhaps they modified the cores with an air gap..

That's a pretty standard thing, discussed in the list archives, along with techniques, warnings, etc.



Stefan

----- Original Message ----- From: "Christoph Bohr" <cb@xxxxxxxxxxxxxxx>
To: "Tesla Coil Mailing List" <tesla@xxxxxxxxxx>
Sent: Thursday, September 13, 2012 11:28 AM
Subject: Re: [TCML] How do they ballast BIG coils?


It's shown on ther very same site, look for controll
cabinet construction, There is an giant stack of variacs,
two of them to be precise, one for voltage, one for current.
100KVA isn't that much after all, compared to what other industrial
appliances require....


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