Building a Generator to Power Home: Questions and Answers

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Building a generator to power a home during outages can be a rewarding hobby, though it requires careful planning and knowledge of electrical systems. The user plans to use a DC alternator and convert it to AC with a power inverter, seeking to achieve around 5kw output. Running inverters in parallel is feasible if they are synchronized properly to avoid damage. However, constructing a 5kw inverter is complex and may not be suitable for beginners. Proper wire gauge selection is crucial for handling the increased amperage when using larger inverters.
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hey all :)

i'm completely new to the electrical game, but I'm very interested in this, however only as a hobby. I'm doing my best to learn as much about this as possible so please excuse my stupid questions.

ok so I'm interested in building a generator to power my home in case of outages. i could buy one, but it'd be much more fun to build one, right? :biggrin: ok i already have everything designed, but i will be using a dc alternator so I'm going to need to convert this to ac obviously. so I'm going to use a power inverter to accomplish this (unless there is another way?). since it's going to be hand built i would like to try to build one of these as well. I've already found a schematic for this, but the max output from this particular design is 1kw. I'm looking for an output of ~5kw, the more the merrier though. my question is, could i run these inverters in parallel to achieve this? maybe somebody can provide me with a schematic to build a larger inverter if not. like i said, i have no idea about any of this really, but i would like to do this. another question i have is that if i was to just buy a large inverter, i would obviously have to run a larger wire for the input, but how much larger?

any insight, advice and direction is much appreciated.
 
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Running inverters in parallel is possible if you synchronise them. If you are off by a few degrees in phase, then you can blow them up.

Building a 5kw inverter is a different ball game. You have blow the schematic of a 1 kw inverter out of proportions. If are you new to electronics I wouldn't attempt building such an inverter as a first project. Here is a list of different wire gauges, and how many amps they handle

http://www.powerstream.com/Wire_Size.htm
 
I am trying to understand how transferring electric from the powerplant to my house is more effective using high voltage. The suggested explanation that the current is equal to the power supply divided by the voltage, and hence higher voltage leads to lower current and as a result to a lower power loss on the conductives is very confusing me. I know that the current is determined by the voltage and the resistance, and not by a power capability - which defines a limit to the allowable...

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