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RHA

Genorator

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RHA
Recently I was given a genorator with a bad motor.The genorator puts out 4000 watt at 3600 rpm. So the first thing I thought of was to hang it off the back of my B-110,like the manufacter did.But before I go any farther I thought I'd post this and get as much input as possible.Concerns: 1)I really don't want to hear my tractor outside screaming while I'm using the Gen. 2)Mounting: I'm looking for suggestions. Please keep in mind,I value all your oppinions

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firefoxz1
That might work as long as you make sure it is turning in the right direction. The tractor will have to run at WOT unless you use a bigger pulley on pto shaft and a smaller one on the gen. Would have to do some math to get the right combo.

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D-17_Dave
Have you pulled the engine off yet? A lot of these small cheap generators use th eengine bearing as the front gen. bearing. Looseing the engine wouldn't leave you any bearing plate or shaft to connect to. If you did have a shaft that would accept a pulley and a front support, it would be easy enough to mount and run. 4000 watts ain't much power, is it really wourth all the trouble.

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D-17_Dave
Lights won't be that big of a deal. The rest you deal with are motors to run. You'll need to at least double the required load needed to run an electric motor to start it. Such as the well and frig. If you've got the well on 120 voltage, it most likely takes around 15 amps to run, better than double that to start it and thats 2/3rd's of the gen. output. So if your frig. is running, and you have some lights on and the boiler pump, you'll be lucky to start the pump. Lots of variables involved in figureing gen. load verses what size you need. Still it's better than nothing.

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comet66
Dave's right, but those loads can all be run one at a time. Pump untill pressure is up, boiler till temp is up, fridge untill temp is down, lights when it is dark. Easy to control. Just when you start the two large draws, the pump and the fridge compressor, make sure they start quickly. Don't let them moan and groan starting slowly. Low voltage is not kind to a motor. Keep your cords as short, and as large a gage as possible.

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slin
I don't think you will have enough engine power to get the 4K output. I would expect you to need a minimum of 14 HP. If you belt drive it you will need at least a pair of matched belts with 50% wrap on each pully. Two pole generators are not the most efficient type,and we know it is two pole because it has to turn at 3600 RPM.

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OldFarmTractor
Let's see, 4000 watts and 746 Watts is one Horsepower under ideal conditions. So you would need 5.5 hp and with 50% extra for fun, a 9 hp might do you well. As for the rotation, I would think that would not matter on AC. As for the engine being part of the bearing assemble, why not use the engine plate and a cut off drive shaft as part of the supporting framework. I'm sure with some ingenuity, something can come out of the thing. Challenges are what make us strong.

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B.Ikard
2 HP per Kilowatt is a good figure to work from. There are all sorts of varibles as D17 Dave said such as power factor of loads,etc. Resistive loads are a lot easier to pull than reactive loads (electric motors). Rotating motors send unused power back to the generator that must be "absorbed" and resistive loads (heater elements,etc) use all the available power which is easier to "generate" Might be fun to play with but don't get your hopes up:) Ike

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MPH
If your looking at doing this generator for back-up use such as power outage, and the parts are free, 4000watts should keep you going in a pinch. During my homesteading days I had a 2000 watt to use with my solar panels and I pumped water, had a frig and freezer. Just gotta beaware of power useage at ALL times. Gotta be more aware of the easy living electric power any time your making your own, no matter what kind of a system you have. After all, the electric co. pays somebody too keep track of things. And like Dave said, there may not be (most likely isn't) a bearing on the engine side of the generator.

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