Recently a Friend Writes...........
......wants to build a Tesla coil and is
looking for a large transformer 16K or so. Have any ideas?
First! No page should
appear on the WEB with the word Tesla
without a warning that :
Warning!! High
Voltage can Be Fatal.
Reply:
You had mentioned Tesla previously and I failed to respond, sorry, 16K ?
I hope you mean Volts and not AMPS or POUNDS?
Lets see 16K amps = 110v X 16,000 A = 1,760,000 WATTS or 1,760 KW
& 1760 KW X $0.22 /per KWH = $387.20 per hour to operate! So we must
be talking about volts here. Please advise when Rick fires this up
California will experience its next energy shortage.
The internet has a half million pages with references to "Tesla
Coil" I have seen at least a hundred good designs in the last few
years. I built several Tesla's in the 60's One was quite large but I can
only guess at the Voltage since I had no instrument capable of measuring
a voltage over about 2KV.
I do not have any transformers that are "step-up" I guess
those went by the wayside when I stopped playing with Vacuum Tubes.
However I do have a solution for Rick, I have lot of 24V step down
transformers with multi voltage input primaries. I used this system in
the Lab at the company where I worked to built an 8kv insulation
Dielectric Tester. I will need to draw up some plans but this is the
basic concept,
The highest standard value you can get for a "conventional iron
core" transformer is about 2 to 4K Volts. Most Neon Sign
Transformers are in the 4-15KV range. This is accomplished by using
special wire in the windings that will not arc out. The typical output
current is either 30 or 60 ma (That's Milliamps) However in order to get
the Tesla output you will need have about 500ma to 1 Amp.
The approach I have always used is to "Voltage Double"
until I get What I want. I use the "Auto-transformer
"principal. Since this E-mail is getting way too long I should
start a Page on the WEB for it. TBC
July 22nd, 2002
120v primary and a 16Kv, 3050va output (so this is a 3KW +/-
unit)
I = E over R E=16,000v I times E = 3050va so the current =
.19 amps or 190 ma.
Primary power = 3050va at 110v = 27.7amps !!! That's a lot of
power!
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