The Super Fun Extremely Relevant Capacitor Thread
Michael W., Sun Mar 25 2007, 01:16AMSo my local Science centre has come into possession of a, and I quote "2X.1MFD 80KV" Capacitor, its about a foot or so across (and tall) and about 10 inches deep. Now what kind of transformer would optimize the cap? I'm sort of afraid of what kind of coil would utilize this...
Re: The Super Fun Extremely Relevant Capacitor Thread
Myke, Sun Mar 25 2007, 02:37AM
WOW
. That's a big cap. I bet it is from a telephone pole or from a small substation. Do you think it is like a pulse xfmr? Could you maybe show a pic.
Myke, Sun Mar 25 2007, 02:37AM
WOW
. That's a big cap. I bet it is from a telephone pole or from a small substation. Do you think it is like a pulse xfmr? Could you maybe show a pic.Re: The Super Fun Extremely Relevant Capacitor Thread
Steve Ward, Sun Mar 25 2007, 08:44AM
.1 to .2 uF isnt *that* big if you get into pole pig power levels. Id doubt that its a suitable cap for TC use, but i could be wrong. Some pictures would be needed to figure that out.
Steve Ward, Sun Mar 25 2007, 08:44AM
.1 to .2 uF isnt *that* big if you get into pole pig power levels. Id doubt that its a suitable cap for TC use, but i could be wrong. Some pictures would be needed to figure that out.
Re: The Super Fun Extremely Relevant Capacitor Thread
Michael W., Sun Mar 25 2007, 02:39PM
It was donated by an xray machine technition. I'll try and get a pic eventually If I go down there...It is quite large and heavy, I'm not sure If I could move it by myself.
Michael W., Sun Mar 25 2007, 02:39PM
It was donated by an xray machine technition. I'll try and get a pic eventually If I go down there...It is quite large and heavy, I'm not sure If I could move it by myself.
Re: The Super Fun Extremely Relevant Capacitor Thread
teravolt, Sun Mar 25 2007, 06:40PM
is it dc filter or pulse cap
teravolt, Sun Mar 25 2007, 06:40PM
is it dc filter or pulse cap
Re: The Super Fun Extremely Relevant Capacitor Thread
Michael W., Sun Mar 25 2007, 07:26PM
I'm not sure but I don't think its a pulse cap, I could be wrong though...
Michael W., Sun Mar 25 2007, 07:26PM
I'm not sure but I don't think its a pulse cap, I could be wrong though...
Re: The Super Fun Extremely Relevant Capacitor Thread
Hazmatt_(The Underdog), Sun Mar 25 2007, 07:40PM
For .1, my LTR correction is about root(2)-1.5, so .1/1.5 = Cres = .067uF
Xc = 1/ 2piFCres, F = 60Hz, Xc = 39.6 K ohm,
Since its 80KV rated, lets go with a 40KVAC source, thatll give 2x for ringdown, which is needed.
I = E / Z = 40KV / 39.6 K = 1,01A (all peak)
P = IV cos(theta), say its perfect, P = IV = 40K * 1.01 = 40 KW
So that's ballpark for .1uF.
U = .5 C V^2, so you get 80 Joules of bang energy out of .1uF. I get about 3 feet/Joule, so you're looking at 27 foot sparks, how fun.
Hazmatt_(The Underdog), Sun Mar 25 2007, 07:40PM
For .1, my LTR correction is about root(2)-1.5, so .1/1.5 = Cres = .067uF
Xc = 1/ 2piFCres, F = 60Hz, Xc = 39.6 K ohm,
Since its 80KV rated, lets go with a 40KVAC source, thatll give 2x for ringdown, which is needed.
I = E / Z = 40KV / 39.6 K = 1,01A (all peak)
P = IV cos(theta), say its perfect, P = IV = 40K * 1.01 = 40 KW
So that's ballpark for .1uF.
U = .5 C V^2, so you get 80 Joules of bang energy out of .1uF. I get about 3 feet/Joule, so you're looking at 27 foot sparks, how fun.
Re: The Super Fun Extremely Relevant Capacitor Thread
Michael W., Sun Mar 25 2007, 09:12PM
Haha, Thanks for the number crunching. I think it would become more of a group project if we ever put it into use...
Michael W., Sun Mar 25 2007, 09:12PM
Haha, Thanks for the number crunching. I think it would become more of a group project if we ever put it into use...
Re: The Super Fun Extremely Relevant Capacitor Thread
teravolt, Mon Mar 26 2007, 03:07AM
do you have a picture of the name plate and a picture of the cap
teravolt, Mon Mar 26 2007, 03:07AM
do you have a picture of the name plate and a picture of the cap
Print this page