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Re: (ET) Hybrid Electrak?



If you tried it, and it worked, then i wouldn't second guess yourself.

I would love to find a Delphi "permagen" alternator. I would think that would be the way to go...

http://delphi.com/manufacturers/dti/available-technologies/automotive-components-for-license/variable-speed-generator-for-14v-42v/

> From: elec-trak-request cosmos phy tufts edu
> Subject: Elec-trak Digest, Vol 9, Issue 16
> To: elec-trak cosmos phy tufts edu
> Date: Tue, 18 Jan 2011 06:00:02 -0500
>
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> Today's Topics:
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> 1. Re: Elec-trak Digest, Vol 9, Issue 15 (Rhett George)
> 2. Re: Elec-trak Digest, Vol 9, Issue 15 (Chris Zach)
> 3. Re: Hybrid Electrak? (Robert Adsett)
> 4. Re: Elec-trak Digest, Vol 9, Issue 15 (Dean Stuckmann)
>
>
> ----------------------------------------------------------------------
>
> Message: 1
> Date: Mon, 17 Jan 2011 15:12:09 -0500
> From: Rhett George <rtg ee duke edu>
> To: elec-trak cosmos phy tufts edu
> Subject: Re: (ET) Elec-trak Digest, Vol 9, Issue 15
> Message-ID: <20110117201209 GB2184 ee duke edu>
> Content-Type: text/plain; charset=us-ascii
>
> > ----------------------------------------------------------------------
> >
> > Date: Mon, 17 Jan 2011 01:41:48 -0500
> > From: Chris Zach <cz alembic crystel com>
> > To: elec-trak cosmos phy tufts edu
> > Subject: Re: (ET) Hybrid Electrak?
> >
> > On 1/15/2011 8:26 PM, Robert Adsett wrote:
> > > On 1/15/2011 10:35 AM, Banks, Michael J. wrote:
> > >> I was under the impression, that using the tractor while charging was a
> > >> bad thing.
> > >
> > > That depends on the charger. There are a couple of circumstances where
> > > using a charger on a running EV could cause damage.
> >
> > There is another problem: If you pull too much power through the charger
> > you could blow the diodes. That could be a problem.
> >
> > C
> >
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> - Greetings -
>
> Think about the current draw that a well-drained battery pack will put on
> the charger, especially the original GE charger. If that does not blow
> the diodes, then the charger boosting the batteries while operating is not
> likely to blow diodes. At least this is my current viewpoint.
>
> Rhett
>
>
>
>
> ------------------------------
>
> Message: 2
> Date: Mon, 17 Jan 2011 16:03:14 -0500
> From: Chris Zach <cz alembic crystel com>
> To: elec-trak cosmos phy tufts edu
> Subject: Re: (ET) Elec-trak Digest, Vol 9, Issue 15
> Message-ID: <4D34AE92 4090700 alembic crystel com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> > Think about the current draw that a well-drained battery pack will put on
> > the charger, especially the original GE charger. If that does not blow
> > the diodes, then the charger boosting the batteries while operating is not
> > likely to blow diodes. At least this is my current viewpoint.
>
> 40 amps at 36 volts :-) Seriously, I have a Link-20 on my elec-trak, and
> it reads about 20a per string when the NiCDs are dead.
>
> Snow blower sucks 150+. Cutoff voltage on my E20 is about 30 volts or
> so. Any lower than that and the relays start dropping out.
>
> What is the rating on the diodes? If one really wanted to do this I
> would recommend a fuse on the DC side of the diodes so it doesn't
> over-draw the charger. Maybe a 50a fuse.
>
> Chris
>
>
>
> >
> > Rhett
> >
> >
> > _______________________________________________
> > Elec-trak mailing list
> > Elec-trak cosmos phy tufts edu
> > https://cosmos.phy.tufts.edu/mailman/listinfo.cgi/elec-trak
>
>
>
>
> ------------------------------
>
> Message: 3
> Date: Mon, 17 Jan 2011 22:51:49 -0500
> From: Robert Adsett <subscriptions aeolusdevelopment com>
> To: elec-trak cosmos phy tufts edu
> Subject: Re: (ET) Hybrid Electrak?
> Message-ID: <4D350E55 7090006 aeolusdevelopment com>
> Content-Type: text/plain; charset=ISO-8859-1; format=flowed
>
> On 1/17/2011 1:41 AM, Chris Zach wrote:
> > On 1/15/2011 8:26 PM, Robert Adsett wrote:
> >> On 1/15/2011 10:35 AM, Banks, Michael J. wrote:
> >>> I was under the impression, that using the tractor while charging was a
> >>> bad thing.
> >>
> >> That depends on the charger. There are a couple of circumstances where
> >> using a charger on a running EV could cause damage.
> >
> > There is another problem: If you pull too much power through the charger
> > you could blow the diodes. That could be a problem.
>
> Definitely a point.
>
> Any decent modern charger will have a brick wall current limit that
> should prevent that but simpler chargers could well be prone to that
> given sufficient load.
>
> Add it to the list.
>
> Robert
>
> --
> http://www.aeolusdevelopment.com/
>
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> we currently have stock."
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>
>
> ------------------------------
>
> Message: 4
> Date: Mon, 17 Jan 2011 23:03:50 -0600
> From: Dean Stuckmann <dstuck lakefield net>
> To: Chris Zach <cz alembic crystel com>
> Cc: elec-trak cosmos phy tufts edu
> Subject: Re: (ET) Elec-trak Digest, Vol 9, Issue 15
> Message-ID: <1D89609B-1F3E-4019-8B25-02744EC374ED lakefield net>
> Content-Type: text/plain; charset="us-ascii"
>
> Maybe ignorance is bliss. Never had trouble with the charger, thrower, or tractor.
> As I stated in other postings I don't know much about electricity. Decided to try it based on these thoughts.
>
> - I knew that the ET charger (and the ET) are primitive at best.
> - I knew that I was going to use power faster than I could replace it
> - I did not think I could over draw the charger since I thought its output was limited to the amount of AC going into it
> - I felt that the batteries would be a buffer, unlike trying to run the tractor hardwired to the charger alone
> - I always had the blower running (even on the long, slow reverse runs) so there was no big shock to the systems on a blower restart
> - Everyone has heard of booster/chargers for starting vehicles
>
> So I tried it, and it worked quite well. Maybe I was lucky or maybe the primitive electrics are more robust than we think.
>
> There is a lot of postings about what could happen. Theory aside, have any of you had failures doing this with the standard ET electrics? Or am I the only one foolish enough to try it?
>
> Dean
>
> On Jan 17, 2011, at 3:03 PM, Chris Zach wrote:
>
> >> Think about the current draw that a well-drained battery pack will put on
> >> the charger, especially the original GE charger. If that does not blow
> >> the diodes, then the charger boosting the batteries while operating is not
> >> likely to blow diodes. At least this is my current viewpoint.
> >
> > 40 amps at 36 volts :-) Seriously, I have a Link-20 on my elec-trak, and it reads about 20a per string when the NiCDs are dead.
> >
> > Snow blower sucks 150+. Cutoff voltage on my E20 is about 30 volts or so. Any lower than that and the relays start dropping out.
> >
> > What is the rating on the diodes? If one really wanted to do this I would recommend a fuse on the DC side of the diodes so it doesn't over-draw the charger. Maybe a 50a fuse.
> >
> > Chris
> >
> >
> >
> >>
> >> Rhett
> >>
> >>
> >> _______________________________________________
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> >> Elec-trak cosmos phy tufts edu
> >> https://cosmos.phy.tufts.edu/mailman/listinfo.cgi/elec-trak
> >
> >
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