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)
