Electronics > Projects, Designs, and Technical Stuff
Need plans for 16kv .50amp transformer, please.
teslaman:
I build tesla coils and am moving on to my latest masterpiece, which will be a 2'x6' coil, and spending $800 on a pole pig is not an option for me, so I need to build it. I do not want to spend a month on research and calculations, and since it's duty cycle is so short, it need not be super efficient, just tough. Just some quick down and dirty specs. I will be starting with 240v, of course, as it will be high current. So, I would need the following- core size, primary wire gauge, secondary wire gauge etc. I expect I will use EI laminates, but am open to suggestions. Keep it simple for me, I don't need a bunch of theory to wind one transformer. This one will be loaned out to churches and schools for presentations. I am retired on social security, and we all know no tax money makes it to the schools, so basically you will be helping out with charity work for kids. Thank you, and god bless. some pics of my 120v 35amp coil
Gyro:
Without in any way trying to dampen your excellent intentions, your mention of loaning out to churches and schools makes me wonder about your personal risks in a litigious land like the US.
Have you looked into the cost of public liability insurance (or the US equivalent). Just something to think about costing before you get too far into the project.
I'm really sorry I can't offer you any useful guidance in the safe construction of a HV transformer of that capacity.
P.S. Welcome to the forum.
bob91343:
First of all, a reality check. If you multiply 16 kV by 0.5 A you find that you have 8000 Watts. If efficiency were 100% that would draw about 30 Amperes from a 240 line.
I suspect you don't need that much. And if you do set up a Tesla coil at that power level, you will destroy communications in a rather wide area, besides breaking the law.
If you want to build a transformer to operate from a 50 or 60 Hz line, you will first need a core onto which to wind the primary winding of sufficient inductance to avoid saturation of the core. And still leave room for the secondary winding. The secondary winding will need 16000/240 times as many turns as the primary. That is perhaps 70 times the number of primary turns.
Complicating the situation is the fact that 16000 volts is very high. It's not only dangerous but requires special insulation techniques, as ordinary paper or mylar will not withstand that high a voltage.
You could save yourself a lot of trouble by locating an old neon sign transformer. Still, personal safety is a major issue.
My summation is this: You want to build something without learning the details of what you are doing, and the result is to be something dangerous to life. I strongly suggest you reconsider your plan and find some other dazzling spectacle to create. It does appear that you are looking for something sensational, and perhaps your motives aren't as lofty as you claim.
Stray Electron:
I can't see even the remotest chance that a school or church or any other institution or business would allow something like this to be connected to THEIR power system or to be operated on THEIR property. Particularly something that was home built by someone that doesn't have the slightest clue about what he's doing and someone that clearly isn't interested in learning how to build what he wants or in spending the money to buy a proper piece of equipment.
Did I miss anything?
Bud:
--- Quote from: bob91343 on September 05, 2019, 06:58:23 pm ---You could save yourself a lot of trouble by locating an old neon sign transformer.
--- End quote ---
There you go
https://youtu.be/uCm1iPLVe8I
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