Steve, Per what my logic tells me; there won't be any problem doing like, and it comes to my mind that you should do it 'automatically'... this means that instead of using Anderson connections, use medium amperage rate contactors, being driven by the same power the charger receives, so when you connect the PFC-30; contactors would also 'close or open' your desired circuitry and done... you will be on 'series charging' your pack.
Also you can include another relay/contactor at the same charger power source to 'disconnect' the ignition main switch, in order to prevent use of the vehicle during charging. Why I say medium amp size contactors? Because the charger rate usually goes through 10-30amps which is different than the amp rate when driving (from 100 to 600 or more) and circuitry/components can be less expensive. Steve, but the idea of charging in 'series' instead or parallel, is the PFC-30 will provide more watts at higher voltage: 288Volts than charging at 144V? Saludos...!! Ing. Marco Gaxiola CEO/Director Juarez #18, Col. Bachoco Tel: +52(662)301.1070 Skype: info.energyev www.energyev.com -----Mensaje original----- De: EV [mailto:ev-boun...@lists.evdl.org] En nombre de Steve Clunn via EV Enviado el: jueves, 26 de marzo de 2015 07:16 a.m. Para: ev@lists.evdl.org Asunto: [EVDL] charging two parallel packs in series >Subject: [EVDL] Open Circuit Voltage Across Contactors I've got two Anderson contacts on my pack, one on the negative side and one on the positive side. So when the key is out of the ignition, the controller and all other components are separated from the traction pack. I currently have a 120V system, with two strings in parallel, because I have a Curtis controller, which has a 144V max. I would, however, like to be able to charge faster with my PFC-30. So my question is, if I reconfigure the packs to be in series for charging, is there any problem, since both contactors will be open? Bill> This could be done safely by leaving one pack ( pack A ) hooked up normally then using two Anderson connectors with your charger being the only thing connected to pack B's battery plus ,chargers neg will go to pack A's neg. Pack B will hook to pack A using a 175amp or bigger Anderson disconnect with pack A's pluses going to pack B's plus and A's neg to B's neg , this will be for driving and parallel charging . Pull the disconnect and plug in a Anderson jumper plug which will connect the A packs positive to the B packs negative and now your are charging in series. If you forget to switch back , no big deal you will just be running on pack A . A few ways to set up these Anderson's , I think the 175 amp Anderson would be big enough . I would have one on pack A and 2 and pack B ( one for series and one for parallel ) The series plug will have its b+ plug going to the B packs neg . shameless plug ,, we sell them but there not on the web site Steve Clunn Merging the best of the past with the best of the future. www.Greenshedconversions.com _______________________________________________ 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) --- El software de antivirus Avast ha analizado este correo electrónico en busca de virus. http://www.avast.com _______________________________________________ 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)