Search String: Display: Description: Sort:

Results:

References: [ +subject:/^(?:^\s*(re|sv|fwd|fw)[\[\]\d]*[:>-]+\s*)*\[Amps\]\s+Oil\-caps\s+delating\s+2\/3\s+ratings\?\s*$/: 7 ]

Total 7 documents matching your query.

1. [Amps] Oil-caps delating 2/3 ratings? (score: 1)
Author: "Han Higasa" <higasa@plum.ocn.ne.jp>
Date: Thu, 6 Mar 2008 19:02:47 +0900
Recently an old man told me that all of the caps are energy storage jobs and they are usually derated for continuous duty to about 2/3 rating. I thank him very much. I am using cheap 32uF 4500V GE no
/archives//html/Amps/2008-03/msg00045.html (7,658 bytes)

2. Re: [Amps] Oil-caps delating 2/3 ratings? (score: 1)
Author: TexasRF@aol.com
Date: Thu, 6 Mar 2008 11:48:12 EST
Han, I have lost two similar capacitors running at about 3500vdc over the years. Both of my capacitors were purchased from Peter Dahl Co and were rated for 5000vdc working voltage. I came to the conc
/archives//html/Amps/2008-03/msg00048.html (8,017 bytes)

3. Re: [Amps] Oil-caps delating 2/3 ratings? (score: 1)
Author: "Barrie Smith" <barrie@centric.net>
Date: Thu, 6 Mar 2008 11:02:26 -0700
Han: Totally by accident I ran a pair of these caps at 6500 volts for several minutes. Nothing bad happened. I still use that pair of caps in power supply that runs 4200 volts no-load. As they say,
/archives//html/Amps/2008-03/msg00052.html (8,612 bytes)

4. Re: [Amps] Oil-caps delating 2/3 ratings? (score: 1)
Author: "k7rdx" <k7rdx@charter.net>
Date: Thu, 6 Mar 2008 10:36:57 -0800
Gerald,how did your capacitors fail? Did they short internally? Did they rupture?In my experiance over the years with oil filled caps, I have found the pressed case types are generally designed for u
/archives//html/Amps/2008-03/msg00054.html (11,610 bytes)

5. Re: [Amps] Oil-caps delating 2/3 ratings? (score: 1)
Author: "jeremy-ca" <km1h@jeremy.mv.com>
Date: Thu, 6 Mar 2008 14:31:51 -0500
PLEASE, dont compare capacitors designed for HV PS use such as in amps, BC and similar with high ESR caps designed for various energy discharge applications. A true oil filled will pretty much last "
/archives//html/Amps/2008-03/msg00059.html (10,337 bytes)

6. Re: [Amps] Oil-caps delating 2/3 ratings? (score: 1)
Author: "Han Higasa" <higasa@plum.ocn.ne.jp>
Date: Fri, 7 Mar 2008 19:15:52 +0900
Sorry not delating but derating. I thank so much to those who gave me the answers on this thread. As I did not find the information regarding these GE 4500V 32uF caps except leakage from their body,
/archives//html/Amps/2008-03/msg00066.html (7,865 bytes)

7. Re: [Amps] Oil-caps delating 2/3 ratings? (score: 1)
Author: "Chuck & Vicki Tifft" <cftifft@sbcglobal.net>
Date: Fri, 7 Mar 2008 06:58:54 -0800
Right On Carl. Chuck W6RD -- Original Message -- From: "jeremy-ca" <km1h@jeremy.mv.com> To: "Barrie Smith" <barrie@centric.net>; "Han Higasa" <higasa@plum.ocn.ne.jp>; <amps@contesting.com> Sent: Thur
/archives//html/Amps/2008-03/msg00067.html (11,528 bytes)

Current List: 1 - 7
Page: [1]
This search system is powered by Namazu