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4hv.org :: Forums :: General Science and Electronics
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Largest Capacitor Bank?

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Thomas W
Wed Jun 22 2011, 11:07AM Print
Thomas W Registered Member #3324 Joined: Sun Oct 17 2010, 06:57PM
Location:
Posts: 1276
who on 4HV acctualy has the largest capacitor bank in Kj ?
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PSCG
Wed Jun 22 2011, 12:48PM
PSCG Registered Member #3792 Joined: Sun Mar 27 2011, 06:07PM
Location:
Posts: 136
I think that the biggest cap bank on 4HV was built from FastMHz. Total stored energy : 24 KJ
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Thomas W
Wed Jun 22 2011, 04:31PM
Thomas W Registered Member #3324 Joined: Sun Oct 17 2010, 06:57PM
Location:
Posts: 1276
wow that is absolutely HUGE!

one of my main dreams is to buy 4260CMF4594 off this page:

Link2

201KJ @ 26KV :O
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Kizmo
Wed Jun 22 2011, 05:16PM
Kizmo Registered Member #599 Joined: Thu Mar 22 2007, 07:40PM
Location: Northern Finland, Rovaniemi
Posts: 624
11.006mF at who knows what voltage tongue
1308762407 599 FT118305 Capacitance


At these energies magnetic forces are real pain... i will make thread at projects section soon with complete story of this bank.


What has happened so far:

- Killed 2 capacitors. Mechanical damage, magnetic forces deformed busbars and.. thankfully i have spare caps and busbars are reworked too
- Destroyed ceiling ccfl fixture with ring launcher
- Beer can makes loud bang when it gets hit at 49.5kJ 104.8kA discharge
- My pneumatic switch blew up
- 4 paralled 2 meter long 35mm^2 copper cables (cables from bank to load) can be torn off from crimped cable connectors and tossed accross the room at 50kJ

Scary. And FUN! shades
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Bored Chemist
Wed Jun 22 2011, 05:58PM
Bored Chemist Registered Member #193 Joined: Fri Feb 17 2006, 07:04AM
Location: sheffield
Posts: 1022
"At these energies magnetic forces are real pain"
I can get 10 times more energy from a chocolate bar.
You are , as the Ents would say, being too hasty.
wink
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Kizmo
Wed Jun 22 2011, 06:49PM
Kizmo Registered Member #599 Joined: Thu Mar 22 2007, 07:40PM
Location: Northern Finland, Rovaniemi
Posts: 624
Bored Chemist wrote ...

"At these energies magnetic forces are real pain"
I can get 10 times more energy from a chocolate bar.
You are , as the Ents would say, being too hasty.
wink
cheesey

Point taken. But i must say that when crapload of electrical energy is turned into noise and molten metal in 680µs is far more spectacular to watch than my body converting chocolate bar to smelly fart (takes hours)




5kj
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Saz43
Sun Jun 26 2011, 11:54PM
Saz43 Registered Member #1525 Joined: Mon Jun 09 2008, 12:16AM
Location: America
Posts: 294
Kizmo wrote ...

Point taken. But i must say that when crapload of electrical energy is turned into noise and molten metal in 680µs is far more spectacular to watch than my body converting chocolate bar to smelly fart (takes hours)

That was definitely my all-time favorite comeback to a "project coolness" challenge. Nice work.
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Myke
Mon Jun 27 2011, 09:26AM
Myke Registered Member #540 Joined: Mon Feb 19 2007, 07:49PM
Location: MIT
Posts: 969
That video really made me laugh. Maybe next time you need to attach them better or something to they don't go flying around. You probably had more energy in the flying cables than the projectile itself. tongue
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ConKbot of Doom
Mon Jun 27 2011, 11:49AM
ConKbot of Doom Registered Member #509 Joined: Sat Feb 10 2007, 07:02AM
Location:
Posts: 329
New electronic highspeed 0000AWG welding cable bullwhip ? I wouldnt want to be on the wrong end of it. :D
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Bored Chemist
Mon Jun 27 2011, 06:35PM
Bored Chemist Registered Member #193 Joined: Fri Feb 17 2006, 07:04AM
Location: sheffield
Posts: 1022
Kizmo wrote ...

Bored Chemist wrote ...

"At these energies magnetic forces are real pain"
I can get 10 times more energy from a chocolate bar.
You are , as the Ents would say, being too hasty.
wink
cheesey

Point taken. But i must say that when crapload of electrical energy is turned into noise and molten metal in 680µs is far more spectacular to watch than my body converting chocolate bar to smelly fart (takes hours)




5kj


Cool vid, but just for the record you might want to try eating the chocolate rather than putting it where the sun doesn't shine. Still, I'm glad you decided not to post a video of that.
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