So: using a chain and sprockets, or pulleys and a belt, or whatever, to make the motor's 36v speed turn the chipper/shredder's wheel/flywheel/flail at an effective speed.... the motor will draw what it needs to keep it going at that speed. Noting, of course, that if you keep shoving 3" branches in endlessley will keep the current draw very high. A constant resistance shunt in series with the chipper's motor (or, I suppose, the current meter on the ET's dash) would be a good idea so you can let all of us at keyboards know how much current it *does* take to run a chipper/shredder so we can learn from your... ahhh... inevitable success.
I expect that since a "5hp" ICE running a chipper/shredder only delivers the nominal 5hp under greatest load, and that a 5hp ICE is more like a 3hp electric, that a nominal 2hp electric motor will, as SteveS experiences, do the job fine for average load, and be able to deliver 3hp or more for short intervals.
2hp at 36v implies a current of about 40A, and a true 3hp at 36v takes a little more than 60 A ... certainly in the neighborhood of my favorite PTO-driven accessory, the snowthrower. I think this is in the neighborhood of what an ET can deliver with healthy batts.
Love them tractiz.
-Max
On Sun, Jun 21, 2009 at 4:42 PM, SteveS
<stevesgroups verizon net> wrote:
I have one that runs off my ET. Works very well. I think it uses a 2hp motor. I can send you details and pictures if you like.
- SteveS
Daniel Eyk wrote:
This isn't directly related to EV's, but someone might have some knowledge on this question that I have.
Has anyone ever converted a gas powered wood chipper to electric? I have one that has that was given to me and it turns out that the crank is bent as something fell off the chipper wheel and jammed, bending the crankshaft. I am interested in converting it to electric as the motor is bad, so it is eligible. I have and Elec-trak with a 36 volt battery system, so I could use that to power the motor on the chipper or else go with an AC motor and a long extension cord.
Daniel Eyk
Vancouver, Wa.
Electric S-10 project
E-15 project
E8M
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