How does this generator work ?

Externet

Well-Known Member
Hello.
My little portable generator Coleman 2500W died. Opened it to see and found the rotor assembly winding (2) has no brushes. The stator windings has a connector(6): 2 yellow wires to a capacitor and a black and a white to the 120VAC outlet.
How does it work ? What type of AC generator is it ?








 
Last time I checked was a fuel station. But you may be right; saw one selling propane too. (They did not sell gasoline nor diesel)
 
Last edited:
Externet said:
This works with gas :

View attachment 147707
Click to expand...
Hi,
Gas powered generators is a subject I've just got interested in.
Instead of looking this one up, I'll ask here, and get some expert answers

In my country, electric per KW is 3x more expensive that gas per KW.
If I had a gas generator, could it's output efficiency compete with the price of electric?
C.
 

I somehow doubt it, you would need a substantially large generator and a much cheaper gas price.

The 'price per kilowatt' doesn't really compare, because you don't price gas in kilowatts. I 'presume' the actual comparison is the heat output, for heating your home etc. Electricity is a very expensive way to heat a house - using it to run a heat pump in a VERY well insulated house can get down in the region of gas heating (but in the same well insulated house the gas heating will get cheaper as well).
 
No, because you can't get an efficiency of 1/3rd from a gas generator.

If you can use the waste heat from the generator to heat your house in place of gas that you would otherwise burn in a boiler or furnace, then what electricity you get is at the cost of the gas, plus the costs of buying and maintaining the generator.
 
There are actually products that do this. The process is called cogeneration. Unfortunately, it doesn't help much in warm climates. This makes it viable only in the Northern parts of the US and Canada. Probably would work well in the Arctic Circle countries of northern Europe as well.
 
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