RE: Capacitor - series?

["Tesla list" <tesla-at-pupman-dot-com>]

Original poster: "Luke" <Bluu-at-cox-dot-net> 

The only way you would get 5KV across both caps at 10KV is if the two
cap values were equal and therefore their reactances equal at the
operating frequency.  If you have unequal capacitance values you cannot
simply divide the total voltage by the number of caps to see what
voltage they will see across them.

Luke Galyan
Bluu-at-cox-dot-net

-----Original Message-----
From: Tesla list [mailto:tesla-at-pupman-dot-com]
Sent: Friday, February 06, 2004 3:34 PM
To: tesla-at-pupman-dot-com
Subject: RE: Capacitor - series?

Original poster: "Mccauley, Daniel H" <daniel.h.mccauley-at-lmco-dot-com>


You have to be careful that the voltage will equally divide across the
capacitors.

For example, if you have a 10kV, 1uF cap and a 1kV, 1uF cap, you
couldn't put them in series to get a 11kV, 0.5uF cap.
You would get about 5kV across each capacitor assuming ideal conditions.

Dan


Can we series caps that are diffrent in working voltage and capitance?
Example if we have a 1 nf 10 kV cap and a 10 nF 1 kV cap? If i series
them il get 11 kV capacitor? What will happen with capitance, will this
work?