[Boatanchors] HV Electrolytics

[KA4INM]

   On 06/03/2015 10:39 AM, rbethman wrote:

> I stand corrected on that particular capacitor.

> However, use <www.bing.com> and search for 10KV Electrolytic Capacitors.

> You will find that THEY INDEED ARE MADE!

> Even higher voltage Electrolytics are made.


   I found:

  " 0.5 uf 10kv electrolytic capacitor for uv lamp " which is really a 
oil filled paper capacitor in a metal can just like those used in air 
conditioners and other motor circuits.

   You can always tell the difference by the lack of polarity indication 
such as a RED paint dot (or a + and  -) and the fact that it is rated at 
over 630 Volts dc wV.  It seems to be impossible to make a chemical film 
electrolytic capacitor that can tolerate more than 630 Volts with 
current technology.

   We frequently put electrolytic capacitors in series (but only with 
paralleling resistors to prevent uneven Voltage distribution caused by 
inconsistent leakage current) to exceed 630 Volts.
-- 
   Ron  KA4INM - Youvan's corollary:
                 Every action results in unwanted side effects.