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Re: More power
In a message dated 96-03-18 00:16:02 EST, you write:
>
>The acutal rating is, I believe, 17% over the input line voltage
>when the variac is wired for over-voltage use. You are correct in
>that the terminals are numbered 1 - 5. In "overvoltage" mode the
>variac is wired with #1 common to both input and output. Terminal
>#2 is used for the second input. Terminal #3 is the second output
>(wiper brush). Terminals #4 and #5 are not used.
>
>> With 280 volts in, at 60 : 1, I would have 16,800 volts out.
>> Will this smoke my 15 KV Condenser Products capacitor?
>
>Good question. Personally I feel the 15KVAC rms/pulse Condenser
>Products capacitor could take it; but if it were mine I would not
>risk it unless I was sure that other factors (voltage drop from
>current limiting) were bringing the actual HV feed voltage back
>to around 15 KVAC.
>
>
>Richard Quick
Richard,
Thanks for the response. I checked the numbering on the Powerstat again this
weekend and my current wiring. There are 5 terminals in a row across the
face of the Powerstat in kind of a V formation. From left to right they are
numbered 4, 2, 5, 1, 3. I currently have one side of the line in connected
to # 4 and the other side of the line to # 1. My load is connnected to # 1
and to the fused terminal # 3. I think you are saying all I need to do is
move the line wire from # 4 to # 2 - is this correct? At 17% increase with
240 volts in, the output would be 280 volts. Is there a way to get less than
280 volts? Like what is terminal # 5 used for? Do you have a book on this
beast? Anyone else?
I agree, I should try not to exceed the rated 15KV on my capacitor. Once I
get the coil fired up again, I will measure the primary voltage on the pig
with the current set up. At 60 : 1 turns ratio in the pig, I want to get the
primary voltage up to 250 volts, but not much higher.
Ed Sonderman