Uhhh, no, that should be 1500Vdc. Although my power source did go insane for a few cycles where the switch had to commutate 2500V peak.
Brian -----Original Message----- From: Brian O'Connell [mailto:oconne...@tamuracorp.com] Sent: Wednesday, April 04, 2018 10:54 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Need a switch Did a switch for 1500kVdc that required 6kV dielectric withstand. Used two sets of two relays in series, each rated 1500V, actuated through optoisolators. Including input and output terminals, was about 20cm x 18cm x7cm. The peak load was 280mA, and 10mA continuous. After about 250 power cycles, replaced relays for another 200 cycles (completion of test). 'Static' DC switching can be stressful to most anything, including MOSFETS. Brian From: Ken Javor [mailto:ken.ja...@emccompliance.com] Sent: Wednesday, April 04, 2018 7:39 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Need a switch Purpose is to reverse polarity on the charged line in a MIL-STD-461 CS115 transient generator. The charged line can charge as high as 2 kV for use, but the actual capability is 2.8 kV (2 kVrms output transformer). Ken Javor Phone: (256) 650-5261 ________________________________________ From: "Grasso, Charles" <charles.gra...@dish.com> Reply-To: "Grasso, Charles" <charles.gra...@dish.com> Date: Wed, 4 Apr 2018 14:32:18 +0000 To: <EMC-PSTC@LISTSERV.IEEE.ORG> Conversation: [PSES] Need a switch Subject: Re: [PSES] Need a switch Reminds me of a Frankenstein-like experiment. What exactly is this switch for Ken :-D ?? From: John Woodgate [mailto:j...@woodjohn.uk] Sent: Wednesday, April 04, 2018 12:50 AM To: EMC-PSTC@LISTSERV.IEEE.ORG Subject: Re: [PSES] Need a switch This message originated outside of DISH and was sent by: owner-emc-p...@listserv.ieee.org I once had a DPDT knife switch with ceramic base and insulators. Rather big, though. John Woodgate OOO-Own Opinions Only J M Woodgate and Associates www.woodjohn.uk <http://www.woodjohn.uk> Rayleigh, Essex UK On 2018-04-04 04:01, Richard Nute wrote: Hi Ken: I interpret your requirement as DPDT, with 3 kV withstand between open contacts as well as 3 kV from conductors to accessible parts such as the switch lever. Tough specs. Good luck, Rich - ---------------------------------------------------------------- This message is from the IEEE Product Safety Engineering Society emc-pstc discussion list. To post a message to the list, send your e-mail to <emc-p...@ieee.org> All emc-pstc postings are archived and searchable on the web at: http://www.ieee-pses.org/emc-pstc.html Attachments are not permitted but the IEEE PSES Online Communities site at http://product-compliance.oc.ieee.org/ can be used for graphics (in well-used formats), large files, etc. Website: http://www.ieee-pses.org/ Instructions: http://www.ieee-pses.org/list.html (including how to unsubscribe) List rules: http://www.ieee-pses.org/listrules.html For help, send mail to the list administrators: Scott Douglas <sdoug...@ieee.org> Mike Cantwell <mcantw...@ieee.org> For policy questions, send mail to: Jim Bacher: <j.bac...@ieee.org> David Heald: <dhe...@gmail.com>
