fusible link questions

[KD6JDJ at aol.com]

>I've no idea what current is normally presant in the field windings, but I
>wouldn't expect it to be large, and I would expect that it could be increased
>significantly before you have problems with overheating.

IIRC, .4 or .6 amp neighborhood. Besides, just spin it a bit faster with
the same field current, and you will have higher voltage. You would only
need the higher field (rotor) current in order to get the output voltage up
at lower rpm.

Regards, Greg  

  Greg
  When your message got to my computer terminal it read .4 or .6 amp. I want
to be sure that the interested readers realize that conventional automotive
alternator rotors will draw a current of  -- from 2 to 10 amps when connected
to a 12vdc source, depending upon the size and manufacturer.
  I understand that cooling is a problem that is given consideration when high
currents are drawn by rotors. And the use of greater numbers of turns (to
minimize the current) introduces inductance, which complicates the regulator
design.
  
  I have rewound both rotors and stators in Delco alternators, trying to make
special 'stuff'. Nothing that I have made has ever been worth bragging about.
I may have some information that would be helpful to thoes of you who are
beginning a project , and dont have it ALL figured out.

    Jerry

   Jerry