I get the basics of an alternator but what makes it spins in the first place. Starting from the moment of ignition of the car.
Sadly Lindsay books are if not now, soon to be no more. He is retiring and not going to continue. A couple of companies will sell the books he had in stock until their gone. Lindsay was a great resource, I have a lot of his books on stuff I'm interested in.Alternators, are 3-Phase machines, converting the "alternating " current to charge the battery, to DC, via a set of 2 diodes per phase, configured as full-wave rectifiers.
Re; "Lindsays technical books" for their dissertation on "Alternator Secrets" ... Very informative..
For a fact, Lindsey puts out a library of very interesting reading for amateur and professional alike...
Three reasons that come to mind:Hopefully I would be stealing the OPs thread just adding to i. Here is a good question. Why are alternators used in cars and not DC generators?
They were actually used in the past, and you can still see them in vintage cars. They are longer and slender than alternators. The reason was that the only rectifiers available at the time were vacuum tubes and metal-oxide rectifiers, not really suitable for a harsh automotive environment. Both also had a limited lifespan and the latter was also quite bulky.Hopefully I would be stealing the OPs thread just adding to i. Here is a good question. Why are alternators used in cars and not DC generators?
The 3 phase is rectified in the "diode trio" and that is inside the alternator.I'm reading a few things on 3 phase alternators. Are the 3 phase rectified from AC to DC? If so where do the 3 phase or cables end up in the car?
When it's rectified it's turned into direct current, which means it's no longer 3phase.And where does it go from there?Where are the 3 phase going to?
Nowhere, they remain inside. If you want them you have to open up the alternator and connect 3 (or 4) wires to the windings.And where does it go from there?Where are the 3 phase going to?
The AC> DC rectifiers and regulation are internal, phases are also combined internally after rectification, with only one hot lead out to charge the battery, and run the rest of the electrical system while engine and accessories are in use...I'm reading a few things on 3 phase alternators. Are the 3 phase rectified from AC to DC? If so where do the 3 phase or cables end up in the car?
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