Hi Paul, I have a Juice box and a PFC30; it can’t do 30 amps for a long time, and starts to overheat. Eventually it fails if I charge at more than 20 amps (I’ve returned it two or three times for repair). http://www.corbinstreehouse.com/blog/2012/09/plug-bug-pfc-30-charger-failed-again/
Do you have a frame voltage leak? I’m wondering if that is tripping the GFCI, and it is back feeding into the Jukebox. I had this problem with my VW and it would trip some some public EV charging stations, but not others. I traced it to my controller, and put it’s pre-high-voltage check wires on a relay. http://www.corbinstreehouse.com/blog/2015/06/plug-bug-killing-chargepoint-charging-stations/ <http://www.corbinstreehouse.com/blog/2015/06/plug-bug-killing-chargepoint-charging-stations/> Anyways..just some more ideas to try to help. Corbin > On Jun 15, 2018, at 1:40 PM, Paul Wallace via EV <ev@lists.evdl.org> wrote: > > Cor, > finally, someone with some background with the Juicebox Classic silver case > unit. I've got a Juicebox classic 40A on a 50amp outlet which should put out > enough power for my PFC40 charger. It works fine with both the 2017 Volt and > the 2015 Spark, but they can only manage around 3.3kw. The problem comes when > I plug in my S10 with the PFC40. If I turn up the charger power past about > 4kw or so, the Juicebox works for a while, 10 to 15 minutes, but then faults > with a GFCI error. I managed to find an old build document online for the kit > which explains how to monitor the serial stream and also put a volt meter on > the GFCI sense pin to the microcontroller and watch the offset voltage. I > think that the Juicebox is a factory version as the GFCI transformer has a > glob of white RTV fixing the 240VAC input wires in what should be the best > position for minimizing the offset voltage. Everything starts out relatively > good. The offset voltage is in the 50mv range as I remember. After about 5 > minutes > , the offset begins to increase while charging current remains steady. Once > the offset voltage gets up to around 200mv, the fault occurs. > > Is there anything I can do to improve the offset voltage so this doesn't > happen? I'd like to be able to use the full power of the Juicebox since the > PFC40 will handle it. > > thanks, > Paul Wallace > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: > <http://lists.evdl.org/private.cgi/ev-evdl.org/attachments/20180615/9b7bf814/attachment.html> > _______________________________________________ > UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub > http://lists.evdl.org/listinfo.cgi/ev-evdl.org > Please discuss EV drag racing at 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/20180616/6f4724af/attachment.html> _______________________________________________ UNSUBSCRIBE: http://www.evdl.org/help/index.html#usub http://lists.evdl.org/listinfo.cgi/ev-evdl.org Please discuss EV drag racing at NEDRA (http://groups.yahoo.com/group/NEDRA)
