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Best Portable Generator 7500W Review
How do those PTO units maintain a steady 60Hz under changing loads?
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Best Portable Generator 7500W Review
The governor of the tractor engine will keep the needle "In the Green" Frank.
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Best Portable Generator 7500W Review
But if it varies more than a few percent it can cause trouble with electronics. The governor is a rather crude device.
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Best Portable Generator 7500W Review
Kwschumm,
In order to make 60hz, the tractor must run at full engine rpm. The PTO generator has to run at 540 PTO rpm at all times.
So long as your generator is sized properly for your tractor (mine is actually too big for my current tractor), there's no fear of overloading the tractor engine.
In my case, I need to make sure that I don't overload the tractor by drawing too much current. So far, I've never come close to putting a max load on the generator.
I would never run the tractor at full rpm for days on end. Instead, the plan is to run the tractor for about one hour during meal prep, and then run the furnace for another hour after that.
Crank up the thermostat, run the tractor for an hour, and then shut down the tractor for several hours. It won't keep the house at a steady 68 degrees, but it will keep the pipes from freezing.
Joel
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Best Portable Generator 7500W Review
I wouldn't be as concerned with overloading the tractor as I would be with poor quality power that damages expensive electronics. Noise, spikes, sags, surges, etc. Some generators specifically say "safe for electronics" while others don't mention it. At least that's the way it was 10 years ago when we bought ours.
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Best Portable Generator 7500W Review
I have one of those Coleman 5.5kv units that I purchased years ago for around $500. It's not the best engine, has an 11 HP Tecumseh I/C that usually starts first or second pull.
I have run it steady, 24 hours a day, during ice storms. Usually change the oil every day or so. The tank will run for 8 hours, so when I was working the storms, the genset would rest when it ran out of fuel until I got home.
If I stay where I am, I will install something more durable that is designed to run on propane. That motor home idea is not a bad one either DR!
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Best Portable Generator 7500W Review
Kwschumm,
I have the same concerns.
It's probably not a good idea to power up my computer or the television with the backup generator.
In my case, the backup power is simply to save the house from freezing water pipes. We can cook on the stove, as well as run the fridge, freezer, furnace and microwave. Nothing beyond that is important to me during a "life or death" situation.
Joel
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Best Portable Generator 7500W Review
I have no fear about using the pto gen. All PC's are on their own APC's.
The hertz never wavers with the PTO. I'd have more concern about the brown outs and spikes from the power or phone lines. A icey limb hits the power line and there is much more disruption of power than the PTO fading a little, if it does.
I exercise mine once a year. Whole house everything on making sure water pump starts, air compressor everything.
Tractor will grunt a little when load hits but needle stays very steady. 275 gallons of fuel in big tank.
Who cares if driveway gets plowed as long as I am warm and can watch TV or read or surf during a big power outage. Of course I could put the "M" on it if I REALLY had to do both at same time.
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Best Portable Generator 7500W Review
Cutter, I agree about DR's mobile home idea, it's not a bad idea at all, especially with the high gas prices depressing land yacht prices. The deal on Coleman's is that some of them have nylon bearings in the generator that just don't last. Not sure what models those might be but clearly it's not yours.
Joel, for five of the last seven years we have had at least a one week outage during the coldest part of winter, and usually over Christmas. It's really nice to have Sat TV and internet during those times, along with the ability to cook and heat and light the house. Our little 14.5kw genset does *most* of that except run the heat pump. With two fireplaces we can keep the house above 60 degrees. One of these years I'll install radiant floor heat on the main floor to add extra heat from the propane fired hot water. But it's not as cold here as there, I don't remember it ever falling below zero here. I came >< this close to buying a 45kw propane genset this year after the ice debacle in December.
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Best Portable Generator 7500W Review
Kwschumm,
We all face different situations. For me, having electrical power available during a blizzard is a simple matter of survival.
If your situation allows you a little more time to sit down and relax, I suggest a pure sine wave power inverter. They aren't cheap, but the power they supply is absolutely stable.
You could run the inverter off the truck or tractor battery. Just buy a power inverter rated for about twice the wattage you actually need. The smaller ones tend to heat up and/or burn out during long periods of use.
Joel
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