(March 14, 2017 at 8:11 pm)AFTT47 Wrote: More info:
You said hubby said the value you are looking for is 500 nanofarads. That may be so but capacitors are never rated in nanofarads. 500 nanofarad capacitor would be rated as 0.5 microfarads. Make sure that value came from the correct frequency of 40 Hz though. All these prefixes are very important so make sure your units are correct.
Lol on some of these comments about a 500 farad capacitor. Yeah, you would definitely want to be careful with one of those.
I worked on a program 30+ years ago that used a gyrotron at about 2 MW for Ion Cyclotron Resonance Heating. I'm pretty sure that the capacitors in the crowbar circuit were less than 500 F. Big-assed inductors, as well! I would do the math, but since I don't recall anything but the approximate power level, I'm not going to spend any time on it.
I also worked on a machine that we performed spin-balancing of spacecraft with. We had two .5 F caps to send all the higher frequency harmonics to ground. There was all kinds of noise in the system, and we just wanted to see the sinusoidal behavior of the teeter-totter mechanism.
If you get to thinking you’re a person of some influence, try ordering somebody else’s dog around.