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Re: PFC-30 Reinstallation problem
by dave cover-2
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Wellllll, I don't believe my PFC is grounded to the chassis. IIRC when I was
installing it the first time there was an ongoing discussion about isolated
chargers, grounding etc. and I ended up not attaching the green wire. One
theory was that you could get zapped if you were leaning against the car and
touched the wrong thing.
My front battery box is the new one and shouldn't have and leakage yet. The
cells sit on fiberglass I beams and there is chloroplast on all four
side. The lid is not in place. The rear battery boxes have been dry for a
while and they are constructed out of plywood and fiberglass with the inside
coated with a chemical proof rubberized coating. I'll check for leakage
right away.
Also, the PFC doesn't trip the breaker right away, it takes a minute or two.
And why doesn't the AMPS knob have any affect on charging? Does the charger
go through some safety checks first before deciding to charge? Is it working
real hard to do something, can't quite get started, and then the breaker
trips?
Thanks for the reply
Dave Cover, chargeless in CT
On Thu, May 15, 2008 at 2:05 PM, Joe Downing <jjddown@...> wrote:
> Assuming the DC gound wire is grounded to the chassis, verify you don't
> have a voltage leak to the chassis. Measure your voltage using a multimeter
> from most positive to chassis ground.
>
> The first time I plugged into a GFCI, I had that problem with my PFC20. My
> pack consists of T125 floodies. I found the wet dirty battery and moist
> insulation...cleaned it up and installed some polypropelene as an additional
> barrier in my battery box.
>
> JD
>
>
> --- On Thu, 5/15/08, dave cover <davecover@...> wrote:
>
> > From: dave cover <davecover@...>
> > Subject: [EVDL] PFC-30 Reinstallation problem
> > To: "Electric Vehicle Discussion List" <ev@...>
> > Date: Thursday, May 15, 2008, 12:11 PM
> > To all you Manzanita Micro fans, I have a dilema. I have a
> > pack of 142
> > BB600s in my car and I'm just finishing up reinstalling
> > everything. Last
> > year, before I took it all apart I had 144 BB600s. I had to
> > move some to
> > another location and fit all but two cells in the new
> > location. Last year
> > the PFC-30 worked fine charging the pack. Now, when I try
> > and charge it runs
> > fine for a minute or two and then trips the breaker.
> >
> > Before firing up the charger the pack was at 170 volts.
> > BB600's are usually
> > flat at 1 volt per cell, charged at 1.2 volts per cell, and
> > charging voltage
> > can easily go to 1.55 volts per cell or higher. So the pack
> > was not dead,
> > even though it sat a while.
> >
> > When I first fired up the PFC, the voltage rose like
> > normal, up to around
> > 189 volts. One odd clue is that my eMeter shows the correct
> > voltage, but
> > doesn't show any charge current. When I fired it up I
> > had the charge knob
> > turned down, but when I turned it up it had no effect on
> > the charge current.
> > I have a twisted pair running directly from the shunt to
> > the eMeter, no
> > breaks or connections. I think the eMeter is correct but
> > have no other way
> > to measure current?
> >
> > On top of it all I have an appointment with Motor Vehicle
> > tomorrow and I'd
> > really like to have a bit more of a charge on the pack
> > before then.
> >
> > What kind of things could cause the PFC to trip my breaker?
> > What might
> > prevent the charge current from ramping up? Are there any
> > debug codes I can
> > read from the charger? (No, I don't have any RegBus.)
> >
> > It is a GFCI breaker, but never tripped before. It works
> > fine with my
> > welder.
> >
> > Thanks
> >
> > Dave Cover
> > _______________________________________________
> > For subscription options, see
> > http://lists.sjsu.edu/mailman/listinfo/ev
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>_______________________________________________
For subscription options, see
http://lists.sjsu.edu/mailman/listinfo/ev
installing it the first time there was an ongoing discussion about isolated
chargers, grounding etc. and I ended up not attaching the green wire. One
theory was that you could get zapped if you were leaning against the car and
touched the wrong thing.
My front battery box is the new one and shouldn't have and leakage yet. The
cells sit on fiberglass I beams and there is chloroplast on all four
side. The lid is not in place. The rear battery boxes have been dry for a
while and they are constructed out of plywood and fiberglass with the inside
coated with a chemical proof rubberized coating. I'll check for leakage
right away.
Also, the PFC doesn't trip the breaker right away, it takes a minute or two.
And why doesn't the AMPS knob have any affect on charging? Does the charger
go through some safety checks first before deciding to charge? Is it working
real hard to do something, can't quite get started, and then the breaker
trips?
Thanks for the reply
Dave Cover, chargeless in CT
On Thu, May 15, 2008 at 2:05 PM, Joe Downing <jjddown@...> wrote:
> Assuming the DC gound wire is grounded to the chassis, verify you don't
> have a voltage leak to the chassis. Measure your voltage using a multimeter
> from most positive to chassis ground.
>
> The first time I plugged into a GFCI, I had that problem with my PFC20. My
> pack consists of T125 floodies. I found the wet dirty battery and moist
> insulation...cleaned it up and installed some polypropelene as an additional
> barrier in my battery box.
>
> JD
>
>
> --- On Thu, 5/15/08, dave cover <davecover@...> wrote:
>
> > From: dave cover <davecover@...>
> > Subject: [EVDL] PFC-30 Reinstallation problem
> > To: "Electric Vehicle Discussion List" <ev@...>
> > Date: Thursday, May 15, 2008, 12:11 PM
> > To all you Manzanita Micro fans, I have a dilema. I have a
> > pack of 142
> > BB600s in my car and I'm just finishing up reinstalling
> > everything. Last
> > year, before I took it all apart I had 144 BB600s. I had to
> > move some to
> > another location and fit all but two cells in the new
> > location. Last year
> > the PFC-30 worked fine charging the pack. Now, when I try
> > and charge it runs
> > fine for a minute or two and then trips the breaker.
> >
> > Before firing up the charger the pack was at 170 volts.
> > BB600's are usually
> > flat at 1 volt per cell, charged at 1.2 volts per cell, and
> > charging voltage
> > can easily go to 1.55 volts per cell or higher. So the pack
> > was not dead,
> > even though it sat a while.
> >
> > When I first fired up the PFC, the voltage rose like
> > normal, up to around
> > 189 volts. One odd clue is that my eMeter shows the correct
> > voltage, but
> > doesn't show any charge current. When I fired it up I
> > had the charge knob
> > turned down, but when I turned it up it had no effect on
> > the charge current.
> > I have a twisted pair running directly from the shunt to
> > the eMeter, no
> > breaks or connections. I think the eMeter is correct but
> > have no other way
> > to measure current?
> >
> > On top of it all I have an appointment with Motor Vehicle
> > tomorrow and I'd
> > really like to have a bit more of a charge on the pack
> > before then.
> >
> > What kind of things could cause the PFC to trip my breaker?
> > What might
> > prevent the charge current from ramping up? Are there any
> > debug codes I can
> > read from the charger? (No, I don't have any RegBus.)
> >
> > It is a GFCI breaker, but never tripped before. It works
> > fine with my
> > welder.
> >
> > Thanks
> >
> > Dave Cover
> > _______________________________________________
> > For subscription options, see
> > http://lists.sjsu.edu/mailman/listinfo/ev
>
> _______________________________________________
> For subscription options, see
> http://lists.sjsu.edu/mailman/listinfo/ev
>
For subscription options, see
http://lists.sjsu.edu/mailman/listinfo/ev
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