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Attaching an alternator to a tractor to power an inverter

G

Greenfrog

Member
I have pto pulley on my CC108 and 129. I want to attach an automotive alternator via a belt to generate AC volts to run an inverter....
Question: what type, size, etc. might work best?

How to mount?attach? ... I would rig up something
Any suggestions?
Wiring.?
Will it work?
 
Lots of how to videos on Utube. You need a very small altinator like Hitachi makes, a darn fast engine or engine pulley to altinator ratio speed, a very large storage battery, and a honking big inverter. Will never work like a portable generator from Lowes. Made a super duper portable battery charger many years ago with a ten horse motor if memory serves and no inverter just straight big storage battery. It really worked but not very practical. Just take a garden tractor and jumper cables.
 
"I want to attach an automotive alternator via a belt to generate AC volts to run an inverter...."

Your post is a bit confusing, by definition, inverters convert DC current to AC current, so you don't want AC Volts to run an inverter, IMHO.

I'm gonna GUESS you want a 120 Volt AC power source?

If that's what you want, I think CC dealers sold PTO driven AC generators, for sure DEERE did.

Here's a link to a thread posted by someone who fabricated one.
CC generator
 
I'm gonna build one of these suckers. Already have an inverter that is 2000W/4000PEAK.
Do I have to put a battery in-between the alternator and the inverter is the VR on the alternator good enough to regulate input voltage?
 
Watts in (VxA, PF=1 if talking about AC circuits) equals watts out minus losses....746 watts per 1 HP. Keep in mind that to work for you, if you are using an RPM rated unit, you may be running a 400 cu inch engine at redline RPMS to get the RPM ratio to run your 400 watt generator/alternator at 400 watts. Neighbor's boy had one years ago, don't remember anything about the unit but I installed it in his truck, of similar sized engine, at his request, and what I said above is what happened. Efficiency??????? Totally sucked! Turned me off them right away.

Course technology and all today, surely things are better now.
 
Belt-driven Pincor generators were once available to install on Cub Cadets using the front end PTO mount. A QA42 snowblower mount may be a good start to building a platform for a belt-driven generator like this one available from NT. Your IH 129 would handle 5000 watts - requires 11hp and 3600 rpm. It's safe for electronics, has +/- 5% THD rating. Probably more practical than rigging up a large inverter.
mvphoto30768.jpg
 
You absolutely need a battery to act as a buffer. The whole system will be totally unstable and most likely one or both will fry very quickly. Maximum smoke.
 
6.7 hp to get your 5kw, plus 10-20% loss for efficiency has you up at 8 hp. 11 hp requirement would leave you 3 hp for transient loads, make for a very
good power source to drive through things like compressor starts pulling on the generator. If you can stand the price, sounds like a winner. I bought
quite a few things from NT and their ratings worked just fine for me.
 
(quoted from post at 22:17:34 01/31/19) I have pto pulley on my CC108 and 129. I want to attach an automotive alternator via a belt to generate AC volts to run an inverter....
Question: what type, size, etc. might work best?

How to mount?attach? ... I would rig up something
Any suggestions?
Wiring.?
Will it work?
Click to expand...
You can get 120 AC volts the hard and complicated way or the easy, clean and simple way.
Get a Fabco Powermite 110, it even looks exactly the same as a Cub Cadet starter/generator.
Paint it the CC yellow and everyone would think it was a factory option.
 
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