Peter David Katz sent me this note. I did not see it on re-wrenches Hi Darryl, I have used the voltage controlled relays from Solar Converters on page 117 of the AEE catalog - 020-06218 or the Morningstar relay driver 020-01255 on the same page. David
--- On Fri, 10/2/09, Peter Parrish <peter.parr...@calsolareng.com> wrote: > From: Peter Parrish <peter.parr...@calsolareng.com> > Subject: Re: [RE-wrenches] Overvoltage Sensor for 48V Battery Bank > To: "'RE-wrenches'" <re-wrenches@lists.re-wrenches.org> > Date: Friday, October 2, 2009, 5:26 PM > > > > > > > > > > > > > > > > Good thing > the relay is actually a DPDT > and I have it wired so that the SB functions until I can > get the overvoltage > thingy. I will ultimately rewire it. Wm., thanks for the > sharp attention to > detail. - Peter > > > > > > > > > > > Peter T. > Parrish, Ph.D., President > > California Solar Engineering, Inc. > > 820 Cynthia Ave., Los Angeles, CA 90065 > > CA Lic. 854779, NABCEP Cert. 031806-26 > > peter.parr...@calsolareng.com > > > Ph 323-258-8883, Mobile 323-839-6108, Fax > 323-258-8885 > > > > > > > > > > > > > > > From: > re-wrenches-boun...@lists.re-wrenches.org > [mailto:re-wrenches-boun...@lists.re-wrenches.org] On Behalf Of William Miller > > Sent: Friday, > October 02, 2009 > 1:16 PM > > To: > RE-wrenches > > Subject: Re: > [RE-wrenches] > Overvoltage Sensor for 48V Battery Bank > > > > > > Peter: > > > > Excuse me if I am exhibiting my ignorance, but won't a > Normally Closed relay > fault in the undesirable state? > > > > William Miller > > > > > > > > At 10:44 AM 10/2/2009, you wrote: > > > > > > I seem to have > lost the email that recommended a battery > sensor that can function in a high-voltage disconnect > system. We have a 48V > battery bank as part of an AC coupled Grid-Tied Battery > Backup System and I > have already installed a N/C 2P relay on the output of the > SB3000 inverter. So > all I need is a sensor that will provide a 12Vdc signal to > the relay coil at > the HV set point. > > > > Someone was kind enough to recommend a unit and if they are > reading this, > please resend your recommendation! > > > > - Peter > > > > > > > > > > -----Inline Attachment Follows----- > > _______________________________________________ > List sponsored by Home Power magazine > > List Address: RE-wrenches@lists.re-wrenches.org > > Options & settings: > http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org > > List-Archive: > http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org > > List rules & etiquette: > www.re-wrenches.org/etiquette.htm > > Check out participant bios: > www.members.re-wrenches.org > > _______________________________________________ List sponsored by Home Power magazine List Address: RE-wrenches@lists.re-wrenches.org Options & settings: http://lists.re-wrenches.org/options.cgi/re-wrenches-re-wrenches.org List-Archive: http://lists.re-wrenches.org/pipermail/re-wrenches-re-wrenches.org List rules & etiquette: www.re-wrenches.org/etiquette.htm Check out participant bios: www.members.re-wrenches.org
