- 1. [Amps] Using an oil capacitor (score: 1)
- Author: Vic K2VCO <vic@rakefet.com>
- Date: Sat, 18 Jun 2011 22:59:39 -0700
- I have an oil capacitor rated at 53 uf 3.5kv. I would like to use it in a power supply with a transformer delivering 2.4 kVAC. The peak voltage is thus close to 3400V. I've never used an oil capacito
- /archives//html/Amps/2011-06/msg00235.html (7,505 bytes)
- 2. Re: [Amps] Using an oil capacitor (score: 1)
- Author: "David C. Hallam" <dhallam@knology.net>
- Date: Sun, 19 Jun 2011 11:09:42 -0400
- Pulse rated oil capacitors must be derated for use for a linear power supply use. 2/3 might be safe but 1/2 is better. David KW4DH -- "I predict future happiness for Americans if they can prevent the
- /archives//html/Amps/2011-06/msg00238.html (8,518 bytes)
- 3. Re: [Amps] Using an oil capacitor (score: 1)
- Author: "Paul Kraemer" <elespe@lisco.com>
- Date: Sun, 19 Jun 2011 12:10:40 -0500
- Vic BE CAREFUL. BE VERY CAREFUL!!! capacitor" which is not suitable for power supply filter at even it's published ratings. You will be picking pieces of capacitor out of places you really don't want
- /archives//html/Amps/2011-06/msg00239.html (9,505 bytes)
- 4. Re: [Amps] Using an oil capacitor (score: 1)
- Author: Vic K2VCO <vic@rakefet.com>
- Date: Sun, 19 Jun 2011 10:34:31 -0700
- Several respondents to my message have said the same thing. This capacitor cannot be used at its voltage rating in filter service and needs to be de-rated to about half its spec'd voltage in that cas
- /archives//html/Amps/2011-06/msg00240.html (10,108 bytes)
- 5. Re: [Amps] Using an oil capacitor (score: 1)
- Author: "Pete Raymond" <n4kwpete@centurylink.net>
- Date: Sun, 19 Jun 2011 16:12:11 -0400
- I have been following this thread with some concern. My oil filled capacitor measures 4 3/4" X 4 1/2" X 9 1/4", its markings are as follows. General Electric, Capacitor, Made in U.S.A., 25F492, 25uf
- /archives//html/Amps/2011-06/msg00244.html (12,603 bytes)
- 6. Re: [Amps] Using an oil capacitor (score: 1)
- Author: "Mitch Cox" <ww4cox@embarqmail.com>
- Date: Sun, 19 Jun 2011 16:28:46 -0400
- Yours does not sound like a photo-flash or pulse rated capacitor. You should be good to go with that one. All of the conversation so far has been about pulse rated as opposed to capacitors like yours
- /archives//html/Amps/2011-06/msg00246.html (13,169 bytes)
- 7. Re: [Amps] Using an oil capacitor (score: 1)
- Author: "Jim W7RY" <w7ry@inbox.com>
- Date: Sun, 19 Jun 2011 13:39:36 -0700
- This EBay item number has a large amount of info about it... 270766657819 73 Jim W7RY -- From: "Mitch Cox" <ww4cox@embarqmail.com> Sent: Sunday, June 19, 2011 1:28 PM To: "Pete Raymond" <n4kwpete@cen
- /archives//html/Amps/2011-06/msg00251.html (15,382 bytes)
- 8. Re: [Amps] Using an oil capacitor (score: 1)
- Author: "Paul Kraemer" <elespe@lisco.com>
- Date: Sun, 19 Jun 2011 15:40:29 -0500
- The physical size suggests that it is one of the pulse rated energy storage types I have one same value almost exact same size made by Spraque and it is labled for Photo Flash I bought mine cheap whe
- /archives//html/Amps/2011-06/msg00252.html (13,717 bytes)
- 9. Re: [Amps] Using an oil capacitor (score: 1)
- Author: Steve Thompson <g8gsq72@gmail.com>
- Date: Mon, 20 Jun 2011 07:51:03 +0100
- It can be very hard to tell - if it was designed for low duty pulse discharge the designer could concentrate on size, weight and price without worrying much about getting heat out from the inside. I
- /archives//html/Amps/2011-06/msg00260.html (8,195 bytes)
- 10. Re: [Amps] Using an oil capacitor (score: 1)
- Author: "Carl" <km1h@jeremy.mv.com>
- Date: Mon, 20 Jun 2011 09:00:00 -0400
- Ive been using one of those 53uF 3500V caps for about 25 years at 2500V no load and it barely feels above ambient after being on for many hours. Its a good cap for a couple of 3CX800's, 813's, loafin
- /archives//html/Amps/2011-06/msg00264.html (10,128 bytes)
This search system is powered by
Namazu