Question about Coleman Powermate Powermate 5000W Generator

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Generator Wattage I was wondering if anyone knows if a 2000 or 2500 watt generator would be a good fit for running a computer, monitor, cable modem and firewall. I guess i don't want to have the generator go into a brownout condition if i have too much equipment for it. Thanks...

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Be very careful with anything electronic. These generatore are not regulated electronicaly, only by the RPM. I would invest in a voltage regulator for voltage spikes and high voltage but you will still have to watch for "brown outs" (low voltage) which will burn out electronics as well.

Posted on Dec 31, 2008

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Both sizes will handle that stuff as long as generator maintains a constant rpm. otherwise you run risk of low voltage or voltage spikes which cpu will not handle for very long

Posted on Dec 19, 2008

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1 Answer

I cannot keep this weed wacker running.


i do not think this is a voltage issue, this a wattage or power out is not enough power in watts to keep the weed eater running, you need to know what wattage the weed eater requires to run.

even though you have a generator that says it will run 3000watts, but in the generator only runs at 1500watts continuously running time until it runs out of gas.

know lets say your generate say 2000watts, that means you are only going to get 1000watts continuously unit you run out of gas.

Oct 05, 2015 | Electrical Supplies

2 Answers

Electricity current eratic


The output of the generator is listed as a constant voltage and a maximum current or wattage - that could also be thought of as capacity.

Typically, it would be rated for 120 or 120/240 volts for generators sold in North America and the wattage could be as low as 3,000 - 5,000 to substantially more than that. If you were to look at the watts or amps while a connected light bulb were turned on, you would see the voltage stay at 120V, but the amps would go from 0 to .833 Amps - and the wattage from 0 to 100 (assuming a 100 W bulb). Next, connect a toaster - again the voltage stays at 120, but the amps and wattage would jump from .833A and 100W to 8 or 9 amps and 1100 watts. As soon as the toast was done - the amps and wattage would drop back to .833A and 100W. The same could hold true for a well pump or air conditioner that is connected to the generator.. these devices turn on and off automatically as determined by a pressure switch or thermostat. Seeing a wattage or current that fluctuates is normal as the amount of power needed from the generator changes as the devices turn on and off by them selves.

Also, it is not unusual for motor operated devices to draw 2 or 3 times as much amps or wattage during the first few seconds when starting as opposed to what it uses when running.

May 18, 2015 | Electrical Supplies

1 Answer

What faults can a change over switch caurse between the generator and the load


One consideration is how many circuits and how much total wattage is being used when the generator is in service.
"Gas Powered Generator GG2300 2300 Watts Surge 2000 Watts Continuous Output 10 Hours of Run Time at Full ."
This is a relatively small generator with 2000 watts output, so the problem may be that the generator can not handle the wattage demand. You can get a pretty good estimate of the wattage demand by adding up the wattage of everything , all lights, appliances, etc that's being powered by the generator. If the total wattage is greater than the output of the generator (2000 watts) then the generator is too small.

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1 Answer

The generator kicked the breaker of and was smoking and smelled like electrical


What type of load (electrical) was hooked up to this generation?? If the surge voltage and current was exceeded above the generator maximum for any length of time. There problems, it could be the regulator, insulation burnt off the windings.


I am taking a guess here. Now, 7100 Watts is it typical surge wattage. This mean that the generator will deliver 7100 Watt (voltage times current) this is know as the power factor. The actual operating load would be 6800 Watts and I would even operator the generator at its peak wattage. Something in the neighborhood of 10--15% less the peak wattage. Therefore a good positive theatrical Wattage would be 5800 to 6350 operating wattage. Then this generator would run all day.



Just remember Ohm's Law. Current plays a big factor in loading of a generator while the operation voltage is at 120 AC Volts. Example: electric motor; Now electric motor when starting will pull three time its operation current. Operating current for a 1/2 HP AC motor is 6 amperes but start this electric motor will require 18 amperes. This is one reason why they starting capacitors on smaller electric motors. Larger three phase electric motor can literal stop a generator cold...in its tracks. It put such a large demand on the generator it stops the engine powering the generator. I have seen crankshaft break because the generator could handle the heavy current load.



Remember, any time you are running a small gas powered generator. All ways figure what the load and surge current load will be before hooking up any generator. Normally this is figured in VA (volt/amps). Wish you lock. GB...stewbison

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1 Answer

I am interested in a generator that can light a 3-bedroom hse and a chauff cutter


Your cutter machine may use more power than your whole house depending on the size of motor. A one horsepower motor 115v will use about 3000 watts to start and about 1000watts to run. To estimate how much power you need, add up all the watts that you will use at home and add to that estimated wattage of the cutter motor (motor will use 3x rated wattage to start plus loss of power thru the extension cord). Buy a generator that will give you needed power and still have a 25 percent reserve. If you need 2000 watts on a continued basis, the 2800 watt may be good, however I would be more comfortable with a 3500 watt if the price was right because of the cutter machine. I would consider converting the cutter to gas power and buy a smaller generator to save on gas since you will be most likely running the generator far longer to power the house. Good luck

Aug 11, 2011 | Yamaha 2500 Watt Industrial Inverter...

1 Answer

We have a Valsi 5500 watt generator that isn't putting enough voltage out to run everything in out small travel trailer. It runs the lights but doesnt push out enough voltage to carry the A/C, microwave,...


How long have you had this generator?
Has the generator worked on all of these loads before?
Model 5500 is a 5500 Watt generator which could easily be 5500 watts (Peak) and not continuous.

Your AC is an inductive load.
Your lights are resistive loads

An inductive load can cause issues when starting due to an increased current demand at start up that some generators cringe under. Do the lights flicker or are they stable? I'd say your diodes on your stator are working if you have light stability but you haven't provided nearly enough information for a detailed solution.

I'm sure you have enough voltage but you aren't getting enough current to run specific loads. How many watts is your AC? How many watts for your microwave? Both of these units demand a great deal of energy to run and when you place too much demand on your generator, it will choke it out and eventually, will cause damage to the generator. You may consider getting a beefier generator with a greater amount of wattage output.


Seeing these specs online and noting what you are trying to run, you have an undersized generator and need to get one that can produce a greater amount of running wattage (as well as peak wattage).

Apr 12, 2011 | Watts Onan Portable Generator - 4000 ,...

1 Answer

Honda eu3000is. runs but not putting out the full watts. Is this a cheap or expensive fix?


I have the 5kw Honda and have no problem, but I have never tried to run 5,000 watts either. It is reaching max rpms? Air filter clean? Good fuel? Oil? Have you run it much, or does it sit? How do you measure the wattage? Add up a bunch of things like, skil saw, pump, fridge, etc? Let's see, skill saw at 13 amps x 120 volts =1560 watts. Fridge probably idles at 7amps, starter windings use 10 or so amps, tv, 500 watts, computer, I would not run anything electronic with a genny, unless I had a spike protector on it. Check it out, hope this helps.

Mar 05, 2011 | Honda 3000 Watt Portable Generator

3 Answers

A friend living in the country bought a Ryobi RG-950 generator. She wants to run 1 of her 2 computers or a TV 1 light at night and asked my advice. I told her that running any electronic equipment off a...


It's best to run all electronics through a UPS and surge protector. Small generators like the RG-950 are really for small power tools and lighting. The Ryobi RG-950 is only rated 650 watts which really means about 450 watts (70%) for continuous use. In general, a basic desktop or a laptop should be OK. A TV up to 25 inches and a 100w lamp, should be OK. If you try doing both at the same time, expect smoke followed by lights out. A UPS and Surge Protector are a must on small generators due to their poor voltage and frequency regulation. The UPS should be a good quality one that deals with Brownout, Overvoltage, and frequency deviation. ALWAYS USE A SURGE PROTECTOR!

Sep 05, 2010 | Winco 5500 Watt TriFuel Power System w/...

1 Answer

Honda generator em 1800


Honda generators are very reliable and are easy to adjust. The best way to check for proper output is to use a meter that can check cycles and voltage. Set meter to htz or freq and adjust the engine governor to 60 cycles. When the engine is turning 3600 rpm it is at max power and the generator may be producing ac voltage ranging from 115 to 125 at 60 cycles. When you draw power from the generator the engine governor will try to overcome the stress and maintain 3600 rpm. The engine must be well maintained to produce full power. Service oil, filter, plug and valve adjustment. Some engines have a spark arrester installed in the muffler that may become blocked with carbon. If engine is producing full power and voltage/amps is low then check brushes, capacitors, and/ or voltage regulator. Most problems occur when too much power is requested from rated generator. Example, trying to connect an 1800 watt air compressor to generator. The compressor may draw double the stated wattage upon starting and cycling. For longest generator life, It is best to use only 75% of rated output. On an 1800 watt generator use max wattage 1350. If you actually need to use 1800 watts then the best generator would be a 2500 watt. enjoy

Nov 28, 2008 | Electrical Supplies

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