Hi! I have a question about one of my recent projects including a car alternator. Please take note I am not trained in electrical engineering but I am aware of the dangerous current that an alternator can output. I am taking the right safety precautions, gloves, outside, etc. with a friend.
I recently bought a self exciting car alternator, 12v 105 amps, and expect to use it the same way a car uses it. I am trying to generate 13-14v and amperage in order to charge a 12v battery that has been taken out of the car.
Here is the alternator that I bought on eBay:
Alternator for Chevy High Output One Wire 105 Amp 21-7127-SE105; 400-12340 | eBay
I thought at first I could just spin the alternator shaft with a drill at 1800 rpm and get 14v on my meter, but I now realize that is not the case. I understand how a car engine spins the shaft of an alternator at high rpm and as it is connected to the battery, the battery begins to charge. The alternator that I bought claims to be 1 wire, or self exciting which I have learned that it does not need input current to create a magnetic field.
So I have a self exciting 105 amp car alternator, a 12 volt car battery, and all the wire in the world. I also have meters, and a way to spin the alternator shaft at high rpm.
My question is: how do I generate electricity with the alternator to charge the 12v battery using a drill to spin it. I have no clue on the wiring!!!
NOTE: I am getting approximately 500 millivolts when I spin the alternator at high rpm.
Thanks again,
Benjamin
I recently bought a self exciting car alternator, 12v 105 amps, and expect to use it the same way a car uses it. I am trying to generate 13-14v and amperage in order to charge a 12v battery that has been taken out of the car.
Here is the alternator that I bought on eBay:
Alternator for Chevy High Output One Wire 105 Amp 21-7127-SE105; 400-12340 | eBay
I thought at first I could just spin the alternator shaft with a drill at 1800 rpm and get 14v on my meter, but I now realize that is not the case. I understand how a car engine spins the shaft of an alternator at high rpm and as it is connected to the battery, the battery begins to charge. The alternator that I bought claims to be 1 wire, or self exciting which I have learned that it does not need input current to create a magnetic field.
So I have a self exciting 105 amp car alternator, a 12 volt car battery, and all the wire in the world. I also have meters, and a way to spin the alternator shaft at high rpm.
My question is: how do I generate electricity with the alternator to charge the 12v battery using a drill to spin it. I have no clue on the wiring!!!
NOTE: I am getting approximately 500 millivolts when I spin the alternator at high rpm.
Thanks again,
Benjamin