PTO generator sizing

   / PTO generator sizing #1  

Jcoon

Silver Member
Joined
Dec 10, 2017
Messages
193
Location
Peasleeville NY
Tractor
NH workmaster 35
Hey everyone, I知 pretty sure I致e read it here multiple times, but want to double check, got a 28 PTO HP new holland, which should run about 14,000 watts.. can I use a 25,000 watt/50,000 surge watt pto generator With about a 10,000 watt load? Reason for the large generator is it is for sale and a good deal.

Thanks everyone!
 
   / PTO generator sizing #2  
Yes you can, if you put to much load on your tractor will be the weak link, with a 10,000 watt load should be taking about 20 hp on your tractor.
It will be a heavy enough generator that it may be a little rough on your pto clutch/brake when you shut it down.
 
   / PTO generator sizing
  • Thread Starter
#3  
If I bring it down slowly to idle then disengage though it shouldn’t be to bad? I have a electromagnetic controlled pto. Guy wants 1500 for it, on its own trailer with pto shaft and manual, he’s original owner.

I just worry about it consuming a lot of fuel just turning it, but if there’s no load it shouldnt actually turn that bad right?
 
   / PTO generator sizing #4  
With no load it will not use more energy than it takes to spin it, very little loss.
 
   / PTO generator sizing
  • Thread Starter
#5  
Ok so seams like a good deal then, it’s a 1800 rpm which is great also!
 
   / PTO generator sizing #6  
Since we're on this subject, just how big of a generator would one use for an average 2400 sq ft home that is all electric?
I'm sure more information is needed but, I'm not sure what information that would be. Will check with my other half when she gets home and see what our average electric usage for winter is.

Rams
 
   / PTO generator sizing #7  
You need to go all over the house and add up how many amps/watts everything comes toooo

Adding that up with a cushion added will tell you... (IF you want to run everything at once)

OR add up what you "really need" in an outage and see what that comes to...

SR
 
   / PTO generator sizing #8  
You need to go all over the house and add up how many amps/watts everything comes toooo

Adding that up with a cushion added will tell you... (IF you want to run everything at once)

OR add up what you "really need" in an outage and see what that comes to...

SR

OK, thanks. Will look into that.
Doing a little research after seeing this thread, I'm pretty sure it doesn't matter how much I need to run the whole house. My 16 hp tractor tops out with a 7200 amp generator anyway. Pretty sure my heat pump will take a lot more than that to keep the house warm. But, if I can power the fire place fan, the frig, the microwave, coffee maker and a couple of lights available, we'll survive till the power comes back on. Or, I run out of diesel. ;)

Rams :drink:
 
   / PTO generator sizing #9  
Heck I run my 50kW Winpower off the pto of my F-935 lawnmower (~22 hp). It doesn' PIC00015.JPGt even grunt. I use a Kill-O-Watt device to set the throttle for 60Hz and away we go...
 
   / PTO generator sizing
  • Thread Starter
#10  
Perfect! I’ll see if I can get it then!
 
   / PTO generator sizing #11  
Most times, I run a 15kw gen on my 12.5 pto Kubota...

standard.jpg


It runs my whole house, no problem at all, here I was just pulling a light load, so no attempt was made to set it up for a long run.

BUT we aren't a power hungry family either, no electric heat or electric cook stove...

It easily runs my freezers, fridge, pump and lights, TV ect... You don't even know you are on a generator.

SR
 
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   / PTO generator sizing #12  
Hey everyone, I知 pretty sure I致e read it here multiple times, but want to double check, got a 28 PTO HP new holland, which should run about 14,000 watts.. can I use a 25,000 watt/50,000 surge watt pto generator With about a 10,000 watt load? Reason for the large generator is it is for sale and a good deal.

Thanks everyone!

You 28HP NH would carry an 18Kw load continiuosly.
 
   / PTO generator sizing #13  
OK, thanks. Will look into that.
Doing a little research after seeing this thread, I'm pretty sure it doesn't matter how much I need to run the whole house. My 16 hp tractor tops out with a 7200 amp generator anyway. Pretty sure my heat pump will take a lot more than that to keep the house warm. But, if I can power the fire place fan, the frig, the microwave, coffee maker and a couple of lights available, we'll survive till the power comes back on. Or, I run out of diesel. ;)

Rams :drink:

16 PTO HP will carry 10Kw of load.
 
   / PTO generator sizing #14  
With "all the losses" through the system, you can pull 14kw out of a 28 pto hp tractor...

Those quoting higher, aren't figuring in the losses...

SR
 
   / PTO generator sizing
  • Thread Starter
#15  
It’s a 35 hp, and I can turn it up to 40 if needed, but I think the turbocharged 35 hp will probably run all my needs. I don’t need over 14,000 Watts, and that’s with every single thing on in the house which would never happen.
 
   / PTO generator sizing #16  
Are all PTO generators “clean power” producers? Ie less than 5% THD.
 
   / PTO generator sizing
  • Thread Starter
#17  
This is a name brand “Dayton” generator, as far as being clean, I believe as long as it will stay in the 60-61 HZ frame, nothing will be effected by it?
 
   / PTO generator sizing #18  
This is a name brand “Dayton” generator, as far as being clean, I believe as long as it will stay in the 60-61 HZ frame, nothing will be effected by it?

IIRC, it needs the rpm set correctly, and the tractor's governor hopefully will keep it close enough.

Big ticket power hungry items are strip heaters, dryers, water heater, stove/range. Manage those and you can get by.
 
   / PTO generator sizing
  • Thread Starter
#19  
I use a coal stoker boiler for all heat and domestic water.

I think this new holland is going to shine with a PTO generator, it is turbocharged which will help keeping RPMs steady wth different demands, and it also has ESM, which is engine speed management, similar to cruise control, which allows me to set the rpm down to the single revolution per minute so I think it will keep the RPMs extremely steady!
 
   / PTO generator sizing #20  
Are all PTO generators 田lean power producers? Ie less than 5% THD.
I would be surprised if they were, but I don't actually know the answer to your question.

BUT, you can look up the specs of the gen set you are interested in and see if it is...

My Winco is advertised to make clean power and I have never had any problem with anything I've run with it, so I assume it is making clean power.

I think a good way to not have a problem is, size the generator a little bigger than you need, then it will run cooler and put out the steady power you need, even if you have a surge load...

SR
 
 

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