ultra high current source
ultra high current source
(OP)
I am doing some experiments to measure magnetic fields and I want to generate a very high current 1kA for a brief period. How could I do this with easily available components.
Could be AC. Mains power supply is 220V
Thanks.
Could be AC. Mains power supply is 220V
Thanks.





RE: ultra high current source
I saw an amateur mad scientist on TV that had a basement full of submarine batteries connected to a swinging bar that would short out to create ball lightning (or something that looked like ball lightning).
Also, Google can crushing and coin shinking.
RE: ultra high current source
RE: ultra high current source
RE: ultra high current source
----------------------------------
If we learn from our mistakes I'm getting a great education!
RE: ultra high current source
Gunnar Englund
www.gke.org
--------------------------------------
100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: ultra high current source
RE: ultra high current source
RE: ultra high current source
That reminds me. I saw a ball of plasma yesterday that was fueled primarily by the last quarter inch of my needle-nose pliers and all the hair on the knuckles of both hands.
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: ultra high current source
Mike Halloran
Pembroke Pines, FL, USA
RE: ultra high current source
RE: ultra high current source
Mike Halloran
Pembroke Pines, FL, USA
RE: ultra high current source
Gunnar Englund
www.gke.org
--------------------------------------
100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: ultra high current source
RE: ultra high current source
Mike Halloran
Pembroke Pines, FL, USA
RE: ultra high current source
Please be advised that you are asking for a dangerous setup, and you should not try any of the previous suggestions without full working knowledge of what you are doing. In other words, this kind of stuff WILL kill you if you don't know what you're doing.
RE: ultra high current source
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: ultra high current source
Maybe battery chemistry and design has improved over the years, or maybe the newer meters have a lower voltage drop across the 10A input.
RE: ultra high current source
RE: ultra high current source
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: ultra high current source
TTFN
FAQ731-376: Eng-Tips.com Forum Policies
RE: ultra high current source
I am aware of dangers and will be taking suitable precautions.
Your concerns for my safety are appreciated.
RE: ultra high current source
Say it's 0.001 ohms, you need to supply 1VAC so ScottyUK's suggestion or some slight variation is good. Basically, a 120V:1V step down transformer so you apply 8.3A to the primary and get 1V @ 1000A on the secondary.
Now say it's 0.5 ohms, then you need 500V and 500VAC @ 1000A certainly can't be sourced from a wall socket (or even from many services).
RE: ultra high current source
This guy shows you how to build the cap. bank.
Itsmoked, he also has a good section on plasma arcs.
RE: ultra high current source
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: ultra high current source
RE: ultra high current source
Keith Cress
Flamin Systems, Inc.- http://www.flaminsystems.com
RE: ultra high current source