i want to generate power without battery if its possible
Yes You can generate power without a battery or any kind of power source. The only down fall to this is the more power you want to use ( appliances ) the less output you will get from the alternator (Otherwise we would have had perpetual motion if it didnt). If you would like to know how to make this simple device to generate your own power let me know
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I would like to see it as I have a project that once I excite the alternator it will run forever (long Time). I tried an inverter which I found very disappointing. 12.5a outlets and that's 1500w. My project is to create 15,000w that will run continously. Getting the watts is easy keeping it running for days I've found not so easy. 15 hours max so far. Also if I can pull 95a out of the alternator and put 2 in parallel working on seeing if I can run off a subpanel box. Anyone trying this let me know what u find.
Check racemate.comBrushless alternator that can handle rpms.Battery is needed as a shock absorber for electric charge. But you can use a small type battery.
Oh yeah and for those who think that an alternator wouldnt last long at high rpm... ever heard of race car driving? they can scream around them tracks all day and year without replacing the alternator. You just have to make sure you have a good one as I mentioned before
That's cuz most people who race short, high RPM races actually turn off their alternators with a switch in the car. Dragsters often don't even have them.
Yes you do have to "excite" the alternator and I would recommend using a performance alternator if you want to peak it to high rpm. Using a fan blade on it will help cool it down too.
Yes they're self-exciting.
thanks but someone told me that I need to connect a battery to the alternator to excite it ,is that true
I don't believe so, but I guess it depends upon the model to some extent (http://www.powerbase-auto.co.uk/alternators.htm link])L
thanks for your help,
will i damage the alternator if i run it lets say 20000 rpm?thanks
no way, most cars redline their engines at between 5000 to 8000, i would't expect a alternator to last very long at those speeds, and at 20,000 it would probably destroy its bearings and the alternator would most likely turn into shrapnel.. .
Mmm - is it designed for that I wonder? (Thinks car engines rev-range) 20,000 sounds a bit extreme - how would you drive it that fast!?
I certainly do not agree with the above comments. People are mostly ignorant of the advancement in Science and technology and tend to rely and use whatever they read years ago. Use Permanent Magnet (Brushless, neodymium magnets) Car alternator to generate electricity for home, even entire home (requires 2 or more), which does not requires a battery to run and can generate electricity even if turned with hand. Use a Grid Tie Inverter to generate AC electricity with Pure Sine wave (if the alternator is not equiped with a voltage regulator but produces DC volts )or use a good inverter if the alternator is giving 12VDC with high amp. Anyone with objections may please post.
No. The rotor, which is an electromagnet, needs a current to make the field that cuts the stator coils.
You could try replacing the rotor windings with suitable magnets taken from a few discarded speakers. Not an easy job.
The alternator is driven by the car engine and generates AC electricity at about 14 volts. If you turn it it makes electricity.
Yep, If the car's running, and there's nothing wrong with the alternator, it'll crank out juice.
The alternator is a generator. If you can keep it turning, you can get electrical power out of it. Of course something (you?) has to provide the power to turn it; there's no free lunch.