Re: Maxwell AC vs. DC ratings

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

Original poster: "Virtualgod" <mike.marcum-at-zoomtown-dot-com> 

Nope, they usually fail at 15kV. 12-12.5kV is about as high as you can go
and have them last any significant length of time. Those are tested at
40kvdc for 1 minute, but probably wouldn't last much longer if constantly
ran at that.

----- Original Message -----
From: "Tesla list" <tesla-at-pupman-dot-com>
To: <tesla-at-pupman-dot-com>
Sent: Saturday, April 03, 2004 12:31 PM
Subject: Maxwell AC vs. DC ratings


 > Original poster: Terry Fritz <teslalist-at-twfpowerelectronics-dot-com>
 >
 > Hi All,
 >
 > Although we commonly use DC ratings as AC ratings in MMCs, I was wondering
 > about commercial caps like the Maxwell 37667.  We are running about 60Hz
AC
 > across them and they probably have far fewer caps in series internally
than
 > an MMC.  They are rated for "35 kV".  I was wondering what people thought
 > about the voltage they should be run at for Tesla coil use?
 >
 > I would guess that 15kV RMS or 21kV peak ( 42kV peak-to-peak) would be ok?
 >
 > Cheers,
 >
 > Terry
 >
 >
 >