OK. Note that you can get (much) higher voltage from the motor at regen under fault conditions, so it is good to have some margin and make sure that the fault current can be safely broken.
Cor van de Water Chief Scientist Proxim Wireless Corporation http://www.proxim.com Email: [email protected] Private: http://www.cvandewater.info Skype: cor_van_de_water Tel: +1 408 383 7626 -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Mike Scott Sent: Monday, June 24, 2013 5:54 PM To: Electric Vehicle Discussion List Subject: Re: [EVDL] Airpax ALM-250 safe on 160V system? Thanks Cor. Yes, regen, so I'll get to work on a new mounting plate and find a place for the joined pair to fit. On Mon, Jun 24, 2013 at 4:34 PM, Cor van de Water <[email protected]> wrote: > Mike, > Only if you gang them mechanically together, so they always open > together, will you gain from series connection of breakers. > Do not worry about the higher voltage at charging - the 250A breaker > will > only be needed to protect your pack while you are drawing from it, i.e. > driving, not while charging (unless you have regen). 50 LiFePO4 means > 3.2V each, so 160V, charged up to 3.45V peak so 172V max? I don't think > you should worry about the few volts higher, but if you do not like to > push your luck then gang your two breakers together and that way ensure > you can break up to 320V. > > Success, > > Cor van de Water > Chief Scientist > Proxim Wireless Corporation http://www.proxim.com > Email: [email protected] Private: http://www.cvandewater.info > Skype: cor_van_de_water Tel: +1 408 383 7626 > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of Mike Scott > Sent: Monday, June 24, 2013 4:08 PM > To: Electric Vehicle Discussion List > Subject: [EVDL] Airpax ALM-250 safe on 160V system? > > I'd like to use this breaker I have, but now have 50 LiFePo calls > instead > of the 12 12V gels. Is it time to break out the spare breaker and wire > them > in series? > > The rating says "Max 160V", but charging will go above that. > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20130624/ae5b > dcfd/attachment.htm> > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > For EV drag racing discussion, please use NEDRA > (http://groups.yahoo.com/group/NEDRA) > > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > For EV drag racing discussion, please use NEDRA ( > http://groups.yahoo.com/group/NEDRA) > > -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20130624/de06 014a/attachment.htm> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA) _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org For EV drag racing discussion, please use NEDRA (http://groups.yahoo.com/group/NEDRA)
