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Re: I Need Electrical Help!
Original poster: "Michael McCarty by way of Terry Fritz <twftesla-at-uswest-dot-net>" <kb8yhv-at-amsat-dot-org>
It will work as long as the receptacles you are plugging in to are on
different circuit breakers and they are on the same phase back at the
electrical panel. If they are on different phases you will end up with
208 or 240 volts between them. If they are the same phase you will read
0 volts potential between them and you can "combine" them to get a 30 amp
circuit limited by a 15 amp breaker in each leg. The current will divide
between the parallel paths.
Is this safe? Electrically it will be OK, if you understand the circuits
it up correctly. I'd question a beginners approach to this though. Wouldn't
it be easier just to limit the primary current to 15 amps and use one
> i know that my pt is going to suck up a lot of power, I know that it needs
> to be current limited, I know that i need a big line filter and a fast
> circuit breaker, but what are the do's and don'ts of operating a small pt on
> a tesla coil.
> I have read allot about them, and i already have my control unit built and
> ready to use. I want to operate my coil on standard wall plug power, but the
> plugs can only handle 15a at the most. There are no 30a plugs anywhere in
> the school, except for in the shop for the welders. I thought about this
> problem for awhile and i think i have a solution. I haven't tried this yet
> but that's why i'm asking, so i will know if it will blow up in my face or
> My plan was to take two extension cords and clip off the female connectors.
> i will then use a multimeter to test and see if the neutrals and the grounds
> are on the right wires. Sometimes i have noticed that the hot and the ground
> are mixed up on non professionally installed wall plugs. I plan on taking
> the hots and the grounds on the cords and connecting them together and
> attaching a length of 30a rated wire to them and using marettes to hold them
> together. This i think will allow 15a to flow through each cord and 30a
> through the bigger cord to my 120-240v step up transformer and then to my
> pt. I will be sort of sharing two 15 amp breakers to get 30 amps.
> Is this possible or will i burn the school down? It may not be code but will
> it work? Somebody let me know before i go ahead and try it anyway!
> Up here in Canada,
> "Professor" Drew
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